For
centuries, the Neem Tree has been an integral part of life in India.
Each and every part of the tree (bark, leaves, root, fruit) serves a
certain purpose. We aim to make these products made from the various
parts of the Neem Tree available easily to the people in the United
States and Canada.
The
Neem Foundation
NeemWell
Creams, Lotions Oil, Leaves and Shampoo are safe for topical use on
all age groups.
Neem leaf capsules should not be given to anyone under the age of 14
Our products are to support healing, not to replace a practitioner.
NEEM IN HEALTH
NEEM'S MEDICINAL USES
NEEM AND HEALTH
LIST OF DISEASES
NEEM'S MEDICINAL USES
Medicinal
properties of neem have been known to Indians since time immemorial.
The earliest Sanskrit medical writings refer to the benefits of neem's
fruits, seeds, oil, leaves, roots and bark. Each of these has been used
in the Indian Ayurvedic and Unani systems of medicine.
In
Ayurvedic literature neem is described in the following manner: ‘Neem
bark is cool, bitter, astringent, acrid and refrigerant. It is useful in
tiredness, cough, fever, loss of appetite, worm infestation. It heals
wounds and vitiated conditions of kapha, vomiting, skin diseases,
excessive thirst, and diabetes. Neem leaves are reported to be
beneficial for eye disorders and insect poisons. It treats Vatik
disorder. It is anti-leprotic. It's fruits are bitter, purgative,
anti-hemorrhoids and anthelmintic'.
It
is claimed that neem provides an answer to many incurable diseases.
Traditionally neem products have been used against a wide variety of
diseases which include heat-rash, boils, wounds, jaundice, leprosy, skin
disorders, stomach ulcers, chicken pox, etc. Modern research also
confirms neem's curative powers in case of many diseases and provides
indications that neem might in future be used much more widely. Some
important medical and veterinary application of neem is given below:
NEEM AND HEALTH
Neem has rightly been called sarvaroghari .
Since time immemorial, Indians have learnt and made use of neem in a
variety of ways both for personal and community health by way of
environmental amelioration. Despite all the vicissitudes India has gone
through over the centuries, neem has managed to remain a friend,
philosopher and guide to an average Indian. It is time this heritage is
appreciated and in area of promotional and preventive health care, our
indigenous knowledge and resources are made use of on an increasing
scale as low-cost, effective ingredient for the realization of the lofty
goal of ‘Health for all'.
As
Naveen Patnaik (1993, p. 40) says, “Possessed of many and great
virtues, this native Indian tree has been identified on the
five-thousand-year-old seals excavated from the Indus Valley
Civilization”. How the tradition lives on has also been graphically
brought out, “Today the margosa is valued more highly for its capacity
to exercise the demon of disease than the spirit of the dead, and an
image of the folk goddess Sitala can often be seen suspended from a
margosa branch where she guards against small pox, once the great killer
of the Indian country side. Renowned for its antiseptic and
disinfection properties, the tree is thought to be particularly
protective of women and children. Delivery chambers are fumigated with
its burning bark (Margosa seed oil has been chemically tested as an
external contraceptive, used by women as a spermicide). Dried margosa
leaves are burned as mosquito repellent. Fresh leaves, notorious for
their bitterness, are cooked and eaten to gain immunity from malaria.
Neem's
antiseptic properties are widely recognized now. “Neem preparations are
reportedly efficacious against a variety of skin diseases, septic
sores, and infected burns. The leaves, applied in the form of poultices
or decoctions, are also recommended for boils, ulcers, and eczema. The
oil is used for skin diseases such as scrofula, indolent ulcers and
ringworm.
Cures
for many diseases have been reported but these need to be confirmed
independently by trials under controlled conditions. Laboratory tests
have shown that neem is effective against certain fungi that infect the
human body. Some important fungi against which neem preparations have
been found to be effective are: athlete's foot fungus that infects hair,
skin and nails; a ringworm that invades both skin and nails of the
feet; a fungus of the intestinal tract; a fungus that causes infections
of the bronchi, lungs, and mucous membranes and a fungus that is part of
the normal mucous flora that can get out of control leading to lesions
in mouth (thrush), vagina, skin, hands and lungs.
Neem
has been used traditionally in India to treat several viral diseases.
Even many medical practitioners believe that smallpox, chicken pox and
warts can be treated with a paste of neem leaves – usually rubbed
directly on the infected skin. Experiments with smallpox, chicken pox,
and fowl pox show that although neem does not cure these diseases, but
it is effective for purposes of prevention. ‘Crude neem extracts absorb
the viruses, effectively preventing them from entering unaffected
cells.” Recent tests, although unconfirmed, have shown that neem is
effective against herpes virus and the viral DNA polymerase of hepatitis
B virus. Should these findings be confirmed, neem could be used to cure
these dreadful diseases.
Its
effectiveness is enhanced on account of its easy and plentiful
availability and low cost along with the advantage – a big and critical
advantage – of crating income and employment for the poor. Neem is
effective against dermatological insects such as maggots and head lice.
It is a common practice to apply neem all over the hair to kill head
lice.
Rural
inhabitants in India and Africa regularly use neem twigs as tooth
brushes. Neem twigs contain antiseptic ingredients. That explains how
these people are able to maintain healthy teeth and gums. Ayurveda
describes neem as herbal drug which is used to clean the teeth and
maintain dental hygiene. Neem in the form of powder is also used to
brush teeth and massage gums.
Chagas
disease is a major health problem in Latin America. It cripples
millions of people there. Laboratory tests in Germany and Brazil show
that neem may be an answer to this dreadful disease which so far remains
largely uncontrollable. The disease is caused by a parasite which is
spread by an insect called kissing bug. Extracts of neem have effects on
the kissing bugs. Research has shown that 'feeding neem to the bugs not
only frees them of parasites, but azadirachtin prevents the young
insects from molting and the adults from reproducing'.
In
Ayurvedic medicine system neem is used to treat malarial fevers. Recent
experiments have shown that one of the neem's components, gedunin (a
limonoid), is as effective as quinine against malaria. Malaria affects
millions of people and is responsible for about 2 million deaths every
year in India and several other countries. China has adopted neem in a
big way for its anti-malaria operation. Their formulation “Quinahausa”
is going to become available in India as well. Neem oil treated mosquito
nets and mosquito-repellent cheap tablets (one paise per tablet) are
also becoming popular. Such mosquito nets presently available in the
North-East have to be made available in the whole country (Swadeshi
Patrika, chaitra-vaishak 2052). Because of growing problems of
resistance to conventional treatments, it is becoming more and more
difficult to control malaria. Should neem products prove effective cure
against malaria, the dream of complete eradication of malaria might
become a reality.
Neem
is widely used for treating fevers. It has anti-pyretic
(fever-reducing) property. In addition, neem products also have
analgesic (pain-relieving) and anti-inflammatroy effects, i.e. for most
common ailments neem can provide cheap, easily-available and local
entrepreneurship medicines.
With
revival of interest in Ayurveda as an important, indigenous total
health-care system, neem with its therapeutic properties and time-tested
usage, more particularly as a household first – aid and safe
self-administered medicine as well as a preventative help is bound to
stage a big come back.
Dr.
Suresh Chaturvedi (1995) has listed the uses of neem in pyrexia,
diabetes, urinary problems, filarial, worms, respiratory disorders,
dermatological disorders, gynecological disorders and by way of external
use for eyes, piles and fistula, wounds, hair, dental hygiene and as
fertility regulatory material; in addition to its ophthalmic and
toiletries uses. However, there is a need for continued R & D and
its transfer to the pharmaceutical industry.
A wide multitude of diseases or conditions can be successfully treated with various elements of neem.
AIDS:
Some
of the best news is that neem may help in the search for a prevention
or a cure for AIDS. So far, the National Institutes of Health reports
encouraging results from in vitro tests for an AIDS prevention and
possible cure using extracts from the tree. Professionally administered
neem solutions are currently being studied for their effects on cancer,
diabetes, heart disease, and AIDS. In 1993, in a preliminary study,
the National Institutes of Health reported positive results from in
vitro tests where neem bark extracts killed the AIDS virus. Using
extracts made by soaking neem bark in water, Dr. Van Der Nat of the
Netherlands found that the extract produced a strong immune stimulating
reaction. Studies reported in 1992 and 1994 showed neem's ability to
enhance the cell-mediated immune response may be used to provide
protection from vaginal contraction of the disease if neem is used as a
vaginal lubricant preceding intercourse. AIDS may possibly be treated
by ingesting neem leaf extracts or the whole leaf or by drinking a neem
tea.
Neem
contains immune modulating polysaccharide compounds; the polysaccharide
may be responsible for increasing antibody production. Other elements
of neem may stimulate immune function by enhancing cellular mediated
response. This dual action can help the body ward off the frequent
infections that generally accompany AIDS.
Arthritis:
Neem
has a long history of relieving inflamed joints, supported by recent
scientific studies. Most anti-inflammatories, such as aspirin and
ibuprofen, irritate the stomach and may be the major cause for upper GI
bellding. Ulcers sometimes occur as a result of taking too much of
these over-the counter drugs. Neem is comparably effective,
anti-inflammatory and does not adversely affect the stomach. The active
constituents in its leaves relieve pain by acting on the prostaglandin
mechanism and significantly reduce acute derma.
Several
studies have shown its usefulness with the disease. Some studies have
looked at the ability of neem leaf extracts to reduce inflammation. One
suggested that the phenolic compounds containing catechin (which
possess anti-inflammatory properties) may produce the anti-inflammatory
effects. Another investigation found that quercetin, an antibacterial
compound, exists in neem leaves. Other studies have shown that the
polysaccharides in neem reduce the inflammation and swelling that occur
in arthritis. Not only does neem help reduce inflammation; it also has
pain suppressing properties. Neem can also help create a balance in the
immune system, directly affecting the progression of arthritis.
Birth Control:
Neem
has been shown to be a powerful, relatively inexpensive birth control
agent for both men and women. In the first century B.C., Charaka, the
Indian physician, gave a detailed method for using neem for
contraception. Cotton soaked in neem oil was kept in the vagina for
fifteen minutes before intercourse. This killed the sperm.
In
both India and the United States, trials show neem extract reduces
fertility in male monkeys without in hiting libido or sperm production.
Also, in other Indian studies, neem leaf tablets taken for one month
produced reversible male infertility but did not affect sperm production
or libido. This shows promise as the first male birth control pill.
In
another study, members of the Indian Army were tested with neem's birth
control effects. Twenty married men took daily oral doses of several
drops of neem seed oil in gelatin capsules. To become 100 percent
effective, the effect took six weeks, but it remained effective during
the entire year of the trial, and was only reversed six weeks after a
man no longer took the capsules. The men experienced no adverse side
effects and retained their normal capabilities and desires. No women
became pregnant during this period. This product is now offered in
stores under the name “Sensal”.
Neem's
contraceptive uses for women are even more varied. Even the leaves are
said to be effective. Many women in Madagascar chew a handful of neem
leaves every day, which according to their statements prevents
pregnancies. In the case of unwanted pregnancies, neem is said to be
capable of inducing a miscarriage.
Neem
oil based vaginal creams and suppositories are extremely popular in
India. Nonirritating and easy to use, they are almost 100 percent
effective. When tested against human sperm, neem extract (sodium
nimbidinate) at 1,000mg was able to kill all sperm in five minutes and
required only 30 minutes at a lower, 250 mg level. It is suggested that
these creams and suppositories also prevent vaginal and sexually
transmitted diseases.
Oddly, neem oil has also been taken internally by ascetics who wish to diminish their sexual desire.
Cancer:
Throughout
Southeast Asia neem has been used successfully by herbalists for
hundreds of years to reduce tumors. Researchers are now supporting
these uses. Neem has been tested on many types of cancers, such as skin
cancers, using neem-based creams and lymphocytic cancer, using the herb
internally. In India, Europe and Japan scientists have found that
polysaccharides and liminoids in neem bark, leaves and seed oil reduced
tumors and cancers and were effective against lymphocytic leukemia.
In
Japan, several issued patents included hot water neem bark extracts;
these were effective against several types of cancer. Several extracts
were tested at different doses and were compared to standard anticancer
agents. Many extracts were equal or better than the standard treatments
against solid tumors. Results of tests performed with a more purified
extract of the bark produced even better results. Further studies using
pure active compounds are hoped to produce even more impressive
results.
In
another study, one researcher used an extract of neem leaves to prevent
the adhesion of cancer cells to other body cells. If cancers can't
stick to other cells, the cancer can't spread throughout the body and is
more easily destroyed.
Neem's
success has been noticeably remarkable with skin cancers. A number of
reports have been made by patients that their skin cancers have
disappeared after several months of using a neem-based cream on a daily
basis. Injections of neem extract around various tumors have shown
sizable reduction in a few weeks' time.
Dental Care:
People
in both India and Africa have used neem twigs as tooth brushes for
centuries. Neem twigs contain antiseptic ingredients necessary for
dental hygiene. Neem powder is also used to brush teeth and massage
gums.
In Germany many researchers have shown that neem extracts prevent tooth decay and periodontal disease.
Infections,
tooth decay, bleeding and sore gums have all been treated successfully
with daily use of neem mouth rinse or neem leaf extract added to the
water. Some people have reported a total reversal of gum degeneration
after using neem for only a few months.
Diabetes:
Because
neem is a tonic and a revitalizer, it works effectively in the
treatment of diabetes, as well. More than a disease that requires
change of diet, diabetes is the leading cause of blindness in people
ages twenty-five and seventy-four; it also damages nerves, kidneys, hear
and blood vessels; it may even result in the loss of limbs. Incurable,
it can be treated in a variety of ways. One recommendation is to take
one tablespoon (5ml) of neem leaf juice daily on an empty stomach each
morning for three months. An alternative is to chew or take in powder
form ten (10) neem leaves daily in the morning. Some studies have shown
that oral application of neem leaf extracts reduced a patient's insulin
requirements by between 30 and 50 percent for nonkeytonic, insulin fast
and insulin-sensitive diabetes.
Because
neem has been found to reduce insulin requirements by upto 50 percent,
without altering blood glucose levels, the Indian Government has
approved the sale of neem capsules and tablets through pharmacies and
clinics for this purpose. Many of these pills are made of essentially
pure, powdered neem leaves.
Karnim,
one medication that contains neem and a number of other herbs,
available in many countries for treating diabetes, was found to lower
blood sugar by more than 50 percent in twenty weeks and to maintain that
level thereafter.
Heart Disease:
Major
causes of a heart attack include blood clots, high cholesterol,
arrhythmic heart action and high blood pressure. Neem has been helpful
in these conditions too. Its leaf extracts have reduced clotting,
lowered blood pressure and bad cholesterol, slowed rapid or abnormally
high heartbeat and inhibited irregular heart rhythms. Some compounds
may produce effects similar to mild sedatives, which reduce anxiety and
other emotional or physical states that may prompt a heart attack. The
antihistamine effects of the nimbidin in its leaves cause blood vessels
to dilate. This may be why the leaves help reduce blood pressure.
A
recent study proved that, when a patient took either neem leaf extract
or neem capsules for a month, her high cholesterol levels fell
subsequently. In another study, alcoholic extract of neem leaves
reduced serum cholesterol by approximately 30 percent two hours after
its administration. The cholesterol level stayed low for an additional
four hours until testing ceased.
Another
study showed that an intravenous alcoholic extract of the leaf produced
a large, immediate decrease in blood pressure, lasting for several
hours. A neem leaf extract, sodium nimbidinate, given to those with
congestive cardiac failure, was successful as a diuretic. Regarding
arrthythmic heart action, neem leaf extract exhibited antiarrhythmic
activity, which returned to normal within eight minutes of
administration.
Malaria:
According
to the Neem Association, an international nonprofit organisation,
malaria affects hundreds of millions of people worldwide and kills more
than two million every year. Malaria is quite common in India and
throughout the tropics.
Neem
has been shown to be effective in a number of ways against this deadly
disease. Both water and alcohol based neem leaf extracts have been
confirmed as effective. It has been shown to block the development of
the gamete in an infected person.
Neem
leaf extract greatly increases the state of oxidationin red blood
cells, which prevents normal development of the malaria virus. Irodin
A, an active ingredient in the leaves, is toxic to resistant strains of
malaris; 100 percent of the malaria gamete are dead within seventy-two
hours with a 1 to 20,000 ratio of active ingredients. Other experiments
have used alcoholic extracts of neem leaf, which performed almost as
well.
Gedunin
and quercetin, compounds found in the leaves, are also effective
against malaria. Several studies show that neem extracts are effective
even against the more virulent strains of the malaria parasite. Some
scientists believe that stimulation of the immune system is a major
factor in neem's effectiveness against malaria. The plant also lowers
the fever and increases one's appetite, enabling a stronger body to
fight the parasite and recover more quickly.
Even
though neem may be effective against the parasites that carry malaria,
it has not been shown to prevent the malaria infection once it's in the
body.
Rheumatism:
Neem
leaves have anti-inflammatory activity, similar to that in drugs such
as phenyl butazone and cortisone. They can relieve pain and reduce
acute pain edema. For rheumatism, tropical applications of a warmed
neem cream that contains neem oil and perhaps a mild neem tea will help
lessen pain.
Stress:
Relatively
new scientific findings indicate that neem may even be useful for
reducing anxiety and stress. An experiment was done on test animals to
see what, if any effect neem leaf extract had on these conditions.
Fresh leaves were crushed and the liquid squeezed out to produce a leaf
extract. The extract was given orally to three main sets of animals, in
two standard stress tests.
One
group received salt water as a base control; another received Valium;
another received the neem leaf extract. The third group was subdivided
into sets that received ever larger doses. In the elevated plus maze
test, doses of neem leaf extract upto 200 mg/kg showed important
antianxiety activity equal to or greater than Valium. The test doses of
neem leaf extract upto 100 mg/kg were equal to Valium in their
antianxiety effect. At 800 mg/kg the effects of the neem totally
disappeared. Neem extracts apparently only work in small doses for this
application.
The
explanation of neem's antianxiety effect may be its ability to increase
the amount of serotonin in the brain. Because it works well in small
amounts, it could be safer than drugs currently used for stress, which
may cause many side effects.
Ulcers:
In
the Ayurvedic medical tradition, neem is considered a useful therapy
for ulcers and gastric discomfort. Compounds in neem have been proven
to have antiulcerative effects. Throughout India, people take neem
leaves for all sorts of stomach problems. Some scientific evidence
exists for its effectiveness for these problems. Peptic ulcers and
duodenal ulcers are treated well with neem leaf extracts; nimbidin from
seed extracts taken orally prevents duodenal lesions and peptic ulcers,
and provides significant reductions in acid output and gastric fluid
activity. Low doses of 20 to 40 mg/kg bring the most relief; increased
dosages reduce the effectiveness of neem's antiulcerative effects.
Neem
is also useful in treating other problems in the stomach and bowels.
The herb promotes a healthy digestive system by protecting the stomach,
aiding in elimination, and removing toxins and noxious bacteria. Its
leaves are often used to treat heartburn and indigestion. Some neem
extracts reduce the concentration of hydrochloric acid in the stomach.
Neem
extracts are also used to treat gastritis. The extracts reduce the
amount of acid in the stomach; their antibacterial and anti-inflammatory
properties can relieve the effects of this condition.
Finally,
neem has also been shown to be effective for treating digestive
disorders such as diarrhea, dysentery, hyperacidity and constipation.
For diarrhea and dysentery one solution is to take one tablespoon of
neem leaf juice with sugar three times a day. For constipation, a neem
powder of two or three grams, with three to four black peppers given
three times a day is both a laxative and a demulcent.
Vitiligo:
Vitiligo
is believed to be an autoimmune disorder that causes patches of skin to
lose their color. It occurs in about five percent of the human
population regardless of race, but most commonly in dark-skinned
people. The two most common treatments are exposure to sunlight (or
PUVA) or corticoster old drugs, but these are not always effective.
Oral
doses of neem were tested at least one year on fifteen patients who had
the disease. They also applied a cream made up of several herbs to
patched, which were then exposed to the sun. After ninety days, 25
percent of the patients showed complete relief. No adverse reactions
were shown by any participants. Those who stayed on the treatment the
longest showed the most improvement. The dosage was four grams of neem
leaves three times a day, ideally taken before each meal.
Other
studies showed that the internal use of neem leaves and bark were
effective even without the cream. It may be possible that neem oil
applied to the affected areas could aid in the reversal of
discoloration.
Miscellaneous Health Benefits:
Neem
truly seems like miraculous natural drug. Neem has been shown to
provide an antiviral treatment option for small-pox, chicken-pox, and
warts. It is particularly useful for these conditions when applied
directly to the skin. This is due in part to its ability to inhibit
viruses from multiplying and spreading.
Chronic
fatigue is considered to be caused by both viral and fungal
infections. Neem, which can attack both, helps the body fight this
debilitating syndrome.
Minor
cuts, sprains and bruises are treated with neem lotion, cream or leaf
extract applied locally. Its anti-inflammatory and antibacterial
attributes are soothing to these conditions.
Hepatitis
is another disease helped by neem. This often-deadly disease can be
transmitted through blood or by ingesting contaminated food or water.
Recent studies indicate that neem extracts can block infection by the
virus that causes the disease.
Tests
in Germany have shown that neem extracts are toxic to the herpes virus
and can easily heal cold sores. Both a mild neem leaf tea and a
tropical cream application are recommended. Once the eruption has
peaked, discontinue the tea (taken after breakfast and after dinner0 and
continue to apply cream until the sore has healed.
Chagas
disease is a major health problem that infects some sixteen to eighteen
million people, with another ninety million at risk in parts of South
and Central America. It may be deadly. There is no vaccine and no safe
and effective drug for its cure. The disease is caused by a parasite.
Trypanosoma cruzi, which is spread by an insect, named the kissing bug.
Lab
tests in Germany and Brazil have indicated that neem may be a
solution. Neem leaf extracts have negative effects on these pernicious
insects. Feeding neem or more specifically a single dose of
Azadirachtin to the bugs not only eliminate the parasites, but the
Azadirachtin prevents the young from molting and the adults from
reproducing. Neem leaf or seed extracts may also be sprayed throughout
the home where the kissing bug lives; this eliminates the parasites and
prevents the bugs from laying eggs.
At
the moment, scientists are researching the antibacterial and
virus-reducing characteristics of the tree. The first studies confirm
its effectiveness against selected fungi that occur, for example, on
hair (trichophyton), skin and nails (epidermophyton), or in the vagina
(candida).
Skin Diseases:
Neem
has been highly successfully against harmful fungi, parasites, and
viruses. Although it can destroy these, it does not kill off beneficial
intestinal flora nor produce adverse side effects. Neem is toxic to
several fungi that attack humans, including the causes of athlete's foot
and ringworm and candida, which cause yeast infections and thrush. In
fact, neem extracts are some of the most powerful Antifungal plant
extracts found in the Indian pharmacopia that are used for these
conditions. The compounds gedunin and nimbidol, found in the tree's
leaves, control the fungi listed above. Basing their studies on the
ancient tradition of using neem to purify the air surrounding sick
people, two Indian researchers found that neem smoke was successful in
suppressing fungal growth and germination.
One
of neem's stronger advantages is its effect upon the skin in general.
It has been most helpful in treating a variety of skin problems and
diseases including psoriasis, eczema and other persistent conditions.
According
to a report from the National Research Council's Ad Hoc Panel of the
Board on Science and Technology for International Development, neem
preparation from the leaves or oils can be used as general antiseptics.
Because neem contains antibacterial properties, it is highly effective
in treating epidermal conditions such as acne, psoriasis and eczema. It
is also used for treating septic sores, infected burns, scrofula,
indolent ulcers and ringworm. Stubborn warts can be cleared up when a
high-quality neem product is used. Unlike synthetic chemicals that
often produce side effects such as rashes, allergic reactions, or
redness, neem doesn't seem to create any of these results.
Early
Ayurvedic practitioners believed high sugar levels in the body caused
skin disease. Neem's bitter quality was considered to counteract the
sweetness. Indians historically bathed in neem leaves steeped in hot
water. This is still considered a common procedure for curing skin
ailments or allergic reactions.
Psoriasis
is successfully treated with neem oil. The oil moisturizes and
protects the skin while healing the lesions, scaling and irritations.
Experiments have shown that patients with psoriasis who have taken neem
leaf orally, combined with tropical treatment with neem extracts and
neem seed oil, achieve results at least as positive as those who use
coal tar and cortisone, the more traditional treatments. Coal tar
products are messy and smelly and cortisone can thin the skin when used
repeatedly. Neem has neither side effect. It can be used for extended
periods of time without any side effects, is easy to apply and is
relatively inexpensive.
Viral Diseases:
In
India, neem is also used to treat viral diseases such as small-pox,
chicken-pox even many medical practitioners use a paste of neem leaves,
rubbed directly on the infected skin, for these conditions. Experiments
with smallpox, chicken pox and fowl-pox have shown that neem is quite
effective for preventing if not for curing these conditions. The neem
extracts absorb the viruses, preventing them from spreading to
unaffected cells. Neem has also been shown to be effective against
herpes virus and the viral DNA polymers of the hepatitis B virus.
Laboratory
experiments have shown that neem has antibacterial characteristics as
well. For example the bacterium Staphylococcus aureus, a feared cause
of food poisonings as well as of furuncles and abscesses, reacted to
neem treatment. Also, German experiments proved that a neem seed
extract with ethanol is effective against the herpes viruses.
LIST OF DISEASES
Medical
properties of Neem have been known to Indians since time immemorial.
The Neem tree brings joy and freedom from various diseases.
It has proven beneficial or preventative for the following:
Abrasions |
Epilepsy |
Obesity |
Acne |
Eczema |
Piles |
AIDS |
Fungal Infections |
Peptic Ulcers |
Allergies |
Fever |
Prickly Heat |
Arrhythmia |
Food Poisoning |
Parasites |
Arthritis |
Genital Warts |
Pain |
Athletes Foot |
Gingivitis |
Plague |
Amenorrhoea |
Gonorrhea |
Periodontal Disease |
Bed Sores |
Gout |
Rashes |
Birth Control |
Gastritis |
Rheumatism |
Bleeding Gums |
Goitre |
Sore Throat |
Blood Purifier |
Gangrene |
Sprains |
Bronchitis |
Heart Disease |
Stomach Problems |
Bruises |
Hemorrhoids |
Stress |
Burns |
Hepatitis |
Syphilis |
Bad Breath |
Herpes |
Scabies |
Boils & Pimples |
High Blood Pressure |
Sinusitis |
Cavities |
Hives |
Snake Bite |
Chagas Disease |
Hypertension |
Sores |
Chicken Pox |
Hair Loss |
Smoking |
Chlamydia |
Heart Burn |
Skin Ulcers |
Cholesterol |
Hangover |
Shingles |
Chronic Fatigue |
Headache |
Skin Problems |
Circulation (poor) |
Influenza |
Thrush |
Colds |
Insomnia |
Tuberculosis |
Cold Sores |
Immune System |
Toothache |
Cancer |
Indigestion |
Urinary Tract infection |
Conjunctivitis |
Intestinal Worms |
Urethra Infection |
Convulsions |
Infected Glands |
Ulcers |
Cough |
Inflammation |
Urinary Stones |
Cuts |
Joint Pains |
Viral |
Candida |
Kidney Problem |
Vaginal Disorders |
Dental Problems |
Lice |
Wounds |
Diabetes |
Leucoderma |
Warts |
Diaper Rash |
Leprosy |
Wrinkles |
Dry Skin |
Measles |
Yeast infections |
Dandruff |
Malaria |
Migraines |
Earache |
Encephalitis |
Nausea |
Ailments and Neem
Hippocratic Oath
A key advantage to using Neem is its compliance with the first tenant
of the Hippocratic Oath taken by all physicians: "First, cause
no harm." Over thousands of years, Neem has been used by hundreds
of millions of people and no hazards have been documented for normal
dosages.
Allergies
Application of a neem-based cream or lotion will stop the itching and
inflammation of rashes and neem tea may be taken internally for allergies
to pollen, molds, etc.
We
have compiled information about the benefits of Neem when used by a
person with Acne...READ
Candida
In healthy people, the yeast Candida albicans normally exists on the
surface of certain moist areas of the body, including the mouth, throat,
and vagina. Sometimes, the fungus overgrows in localized areas, causing
minor forms of candidiasis such as oral thrush and vaginal thrush. However,
in people who have reduced immunity infection can spread throughout
the body this may also occur in people who have had prolonged courses
of antibiotics or use intravenous drugs.
Neem and
Candida
Neem leaf tea will promote healing and reduce the pain and inflammation.
Children under 12 should only gargle with the tea and not swallow. For
the redness appearing on the skin around the mouth, a neem-based cream
should be applied regularly until the infection has cleared.
Read more
about Neem and Fungi on page 2
Neem and
Yeast Infection
For infections of the skin, rubbing a neem-based cream on the affected
areas several times per day, especially after washing or getting the
area wet, will relieve the itching, heal the skin and get rid of the
infection. For vaginal yeast infections, a neem-based cream can be applied
with cotton swabs or douche with neem leaf extract. Drinking three cups
of neem tea for several days will help rid the body of both external
and internal infection....READ
Athletes
foot
Athlete's Foot is one of the most common forms of fungal infections
in the human environment. Athlete's Foot is generally contained to the
area between the soles of the feet and the toes. This mild fungus is
usually picked up in warm, public facilities, such as showers, swimming
pools and gymnasiums.
Neem and
Athletes foot
Neem has been found to be effective against athletes foot. Fungal infections
of this type affect nine out of ten people in the United States at some
time or another. Untreated, this fungus can attack the toenails and
even cause secondary infections throughout the body. A corn starch powder
combined with powdered neem leaves makes an excellent preventative while
alcoholic neem leaf extract or a neem-based lotion can be used if an
infection has already begun
Prevention:
Athlete's Foot is easily preventable. Keeping feet cool and dry, especially
during warm summer months. Using powders or drying lotions is the easiest
way to prevent Athlete's Foot. Those prone to excessive perspiration
can purchase special socks which helps to wick wetness and keep feet
dry....READ ABOUT FUNGAL INFECTIONS
Ringworm
Ringworm is a skin infection caused by a fungus that can affect the
scalp, skin, fingers, toe nails or foot. Affecting the smooth skin and
scalp, these fungal infections are often accompanied by profound itching
and redness of the affected skin. This fungus produces circular ring
lesions up to six inches in diameter on the skin and can cause loss
of hair in patches of the scalp.
Ringworm
and Neem
Neem has historically been an effective treatment for fungal infections.
Early studies verified scientifically that the fungus that causes ringworm
is effectively controlled with neem extracts. In one trial, patients
with long term and severe cases of ringworm were selected for study.
They had used commercial ointments containing salicylic acid and benzoic
acid for over three years yet had failed to stop the infection. They
were each treated with alcoholic neem leaf extract in a carrier creme.
Within just two to three days after using neem extract on the areas
the patients were clear of the infection and remained so for the one
year follow-up period. Washing with neem soap or shampoo and rubbing
neem creme onto the affected areas clears this infection in several
days.
Anti-inflammatory
Applying a cream containing neem oil topically has been used for centuries
to reduce inflammation. A compound called sodium nimbinate found in
neem leaves has been shown to provide significant relief to inflamed
tissue. Other compounds such as nimbin, nimbinin and nimbidol are comparable
to cortisone acetate in reducing inflammation.
Arthritis
Arthritis is a term covering many types of joint ailments. The ailments
can be autoimmune disorders, infections, the result of wear on the joints
or simply inflammation. Generally though it is the inflammation or the
pain associated with it that is treated regardless of the origin. Neem
can aid in treating arthritis in many ways. Neem's antibacterial properties
can help kill infectious causes while its inflammation reducing properties
and pain suppressing properties can alleviate the symptoms. Neem can
also help create a balance in the immune system which directly affects
progression of the disease.
Arthritis
is one of the most common medical problems. There are more than 100
forms of it, and each has varying causes, symptoms and treatments.
Warning signs of arthritis include:
Swelling in one or more joints
Prolonged early morning stiffness
Recurring pain or tenderness in any joint
Inability to move joint normally
Redness and warmth in a joint
Unexplained fevers, weight loss or weakness with joint pain.
Any of
these signs, when new, that lasts for more than two weeks requires prompt
medical attention. Distinguishing arthritis from common aches and pain,
along with determining the type of arthritis, is important for treatment.
Common
types of arthritis include:
Osteoarthritis.
Caused by normal wear and tear on the joints, this chronic condition
is usually not serious. However a joint may degenerate to the point
where replacement surgery is needed.
Rheumatoid
arthritis. A type of inflammatory arthritis, rheumatoid arthritis is
a chronic condition caused by the body's immune system attacking joint-lining
tissue.
Infectious
arthritis. Infectious agents include bacteria, fungi and viruses. This
type of arthritis can affect anyone. Usually, prompt diagnosis and treatment
results in recovery.
Gout. Gout
is most common in men older than 40 and is caused by formation of uric
add crystals in a joint.
A number
of studies indicate the usefulness of neem in treating arthritis.
The long
history of using neem leaf, bark and seed extracts to relieve inflamed
joints is borne out by the recent scientific investigations. Treatment
for arthritis is traditionally a mild neem leaf tea coupled with rubbing
a warmed neem-based cream on the stiff or painful areas as needed.
Top
Anti-Viral
Neem is one of just a few known anti-viral agents. In a study on neem's
effectiveness as an anti-viral agent, neem seemed to interact with the
surface of cells to prevent infection by the virus thereby inhibiting
multiplication of the virus. Similar results have been observed in studies
of other viral pathogens indicating a unique property of neem to prevent
viral disease.
Top
Antibacterial
Properties of Neem
In 1855, a researcher reported that Neem leaves were given "with
great success" to European soldiers to fight cholera. In 1968,
Jain found leaves effective for various skin diseases and boils, and
in 1984, Pillai and Santhakumari noted antibacterial action. Recent
studies have shown antibiotic efficacy against many bacterial strains,
including Staphylococcus and Clostridia. Neem has even successfully
healed ulcers associated with bacterial infections.
Top
Chickenpox
Chickenpox, sometimes called varicella, is a common viral infection
that mostly affects young children. The infection, with its characteristic
rash of blisters, is caused by the varicella zoster virus, which also
causes herpes zoster. The virus is easily transmitted in airborne droplets
from the coughs and sneezes of infected people or by direct contact
with the blisters. You can catch chickenpox from someone who has either
chickenpox or herpes zoster if you are not immune.
Neem and
Chickenpox
Chickenpox is a viral disease that has been traditionally treated with
a paste of neem leaves -- usually rubbed directly onto the affected
skin
Top
Dandruff
Is a form of dermatitis. Usually associated with imbalance in hormones,
infections, or diets rich in fats and sweets, dandruff can only be controlled,
not cured.
Neem and
dandruff
To treat dandruff, apply a neem-based cream to the scalp shortly before
bathing. Wash hair with shampoo with added Neem. I have also found benefit
in applying Neem mixed with Sweet Almond oil to the scalp overnight
and washing with a neem based shampoo in the morning. Watching one's
intake of sugar might help reduce dandruff.
Itchy scalp
Itchy scalps can be caused by any number of things, ranging from allergies
and dandruff to mites. Washing the scalp with a neem shampoo and applying
a small amount of neem lotion to the scalp afterwards will relieve each
of these problems
Top
Head lice
Head lice
are often spread among schoolchildren by contact clothing or hairbrushes.
It is contagious among family members and so all should be treated at
the same time. Bedclothes, hairbrushes, Hats and other garments should
be steeped and washed.
Head Lice
and Neem
Neem has hormone mimics that interfere with the life cycle of parasites,
inhibit their ability to feed and prevent the eggs from hatching.
Shampoos
incorporating neem followed by neem-based cream to the hair and scalp
has proven to work in clearing the lice on both adults and children
with no side effects....Read More
Top
Hemorrhoids
Neem cream applied topically to external hemorrhoids becomes a soothing
and lubricating salve that also helps control bleeding and itching.
It provides the antibacterial, anti-inflammatory and pain-relieving
properties desirable when treating hemorrhoids.
Herpes (Cold Sores, warts)
The highly contagious herpes simplex viruses cause a number of different
disorders characterized by small, painful blisters on the skin and mucous
membranes, most commonly on or around the lips or genital area. Herpes
simplex virus (HSV) infection is transmitted by contact with a blister.
Neem and
cold sores
Topical application of a neem-based cream to the affected area, is recommended.
Top
Immune
System
In studies that have been made, the general conclusion is that neem
not only kills some infective organisms directly but also boosts the
immune response on several levels. This increases the body's ability
to fight bacterial, viral, and fungicidal infections itself.
This combination
of effects is more effective in the long run because chemicals toxic
enough to eliminate all microbes often also harm healthy body tissue
and cause undesirable side-effects. An improved immune system can selectively
wipe out the invading microbes without adversely affecting other cells.
When invaded
by microbes (or anything else the body recognizes as foreign), the immune
system releases antibodies that lock onto and neutralize the intruder.
Antibody
production
Neem not only enhances antibody production but also seems to improve
the cell-mediated immune response by which white blood cells are unleashed
to kill the invaders. In this type of immune response, special scavenger
cells in the blood called macrophages devour the microbes and present
bits of them along with their own surface molecules. It is only after
macrophages (or other antigen-presenting cells) present bits of the
microbe as antigens that helper T cells recognize the antigens. These
helper T cells then release chemical messengers called cytokines that
galvanize other cells of the immune system into a counterattack. By
enhancing the body's first line of defense, neem helps the immune system
more quickly respond to infections that might otherwise gain a strong
foothold that would then be more difficult to overcome.
Immunomodulatory
polysaccharide compounds
Neem, especially neem bark, is recognized for its immunomodulatory polysaccharide
compounds. These compounds appear to increase antibody production. Other
compounds in neem enhance the immune system via a different mechanism;
the cell-mediated immune response, the body's first form of defense.
Only when this system appears to be unable to stop an infectious onslaught
is the more massive immune system involved.
Cell mediated
immune response
Neem oil acts as a nonspecific immunostimulant that activates the cell
mediated immune response. This then creates an enhanced response to
any future challenges by disease organisms. When neem oil was injected
under the skin there was a significant increase in leukocyte cells and
perioneal macrophages showed enhanced phagocytic activity and expression
of MHC class II antigens. Production of gamma interferon was also induced
by the injection. Spleen cells showed higher lymphocyte reaction to
infection but did not augment anti-TT antibody response.
By enhancing
the cellular immune response most pathogens can be eliminated before
they cause the ill feeling associated with disease. This mechanism could
also help in diseases that involve the immune system, like AIDS. Taking
neem leaf or bark powder every other day or drinking a mild neem tea
will enhance antibody production and the body's cell-mediated immune
response, helping to prevent infections.
Lymphomatic
counts
Water soluble neem leaf extracts, when taken orally, produced an increase
in lymphomatic counts and both red and white blood cells as well as
lymphocyte counts.
Birth control
effects
In studies on the birth control effects of neem the major factor in
that effect appears to be an increase in the immune response where neem
has been applied that causes the body to reject the fetus as a foreign
body.
Top
Neem and Pain
Inhibition of prostaglandin synthetase by limonoids (and/or polysaccharides)
reduces perceived pain.
Inhibitor
of prostaglandin synthetase
Neem leaf and bark extracts have been shown to be a more potent inhibitor
of prostaglandin synthetase than acetylsalicylic acid (aspirin) and
pethidine hydrochloride. In some cases neem was effective at reducing
pain for a significantly longer period than standard agents. Neem also
reduces the activity of the central nervous system, which also reduces
perceived pain. According to a study led by N. Khanna, neem produces
an analgesic effect upon the central and peripheral neural pathways.
He also feels that both opioid and non-opioid receptors can be affected
by neem.
Top
Psoriasis
Psoriasis is a chronic skin disease that generally appears as patches
of raised red skin covered by a flaky white buildup. Although the exact
cause is unknown, psoriasis is believed to be related to faulty signals
sent by the body's immune system. These signals accelerate the growth
cycle in skin cells, which pile up on the surface when the body can't
shed them fast enough. Click here for an animated image that illustrates
the cycle of skin growth in normal skin and skin with psoriasis.
Psoriasis
is not contagious—no one can "catch" it from another
person. It has a genetic component that makes certain people
more likely
to develop it, but often an external or environmental
"trigger" is necessary to make psoriasis appear. These triggers may
include emotional
stress, injury to the skin, some types of infection and
reaction to
certain drugs.
The most
common form of psoriasis is called "plaque psoriasis"—about
80 percent of people with psoriasis have this type. Plaque psoriasis
can appear on any skin surface, although the knees, elbows, scalp, trunk
and nails are the most common locations. There are several other types
of psoriasis, and between 10 percent and 30 percent of people with psoriasis
also develop a related form of arthritis, called psoriatic arthritis.
Neem and
Psoriasis
Neem has an almost magical effect on chronic skin conditions that fail
to respond to conventional treatments. Acne, psoriasis, eczema, and
ringworm are conditions that are effectively treated by a Neem preparation....MORE
Top
Neem and
Scabies
Scrub with Neem Soap and Neem Shampoo. Dry, then liberally apply Neem
Lotion over entire body (not just where scabies are evident). 2 or 3
Neem leaf capsules daily for 2 weeks to boost immune system can be taken
by adults. This attacks the scabies internally and increases the blood
circulation. Take 1 to 2 capsules a day for about 4 weeks after the
scabies has gone....READ
Scabies
Scabies is a contagious disorder of the skin caused by very small, insects
or mites called the Human Itch mite or Scabies itch mite. The female
insect burrows into the skin where she lays 1 - 3 eggs daily. A very
small, hard to see, zigzag blister usually marks the trail of the insect.
Other more obvious symptoms are an intense itching (especially at night)
and a red rash that can occur at the area that has been scratched.
The most
common locations for scabies are on the sides of fingers, between the
fingers, on the backs of the hands, on the wrists, heels, elbows, armpits,
inner thighs and around the waist (belt line).
If untreated,
the female will continue to lay eggs for about five weeks. The eggs
hatch and the new mites begin the cycle all over again. The mites themselves
are too small to be seen without magnification. One of the great problems
with scabies always has been misdiagnosis.
Scabies
is spread by personal contact, e.g., by shaking hands or sleeping together
or by close contact with infected articles such as clothing, bedding
or towels. It is usually found where people are crowded together or
have frequent contact, and is most common among school children, families,
roommates, and sexual partners. Scabies can be spread by the insect
itself or by the egg. Prompt action is required to rid a person of the
insects and eggs.
Top
Shingles
Neem and
Shingles
Topical applications of a neem-based cream should be applied to the
affected area at least three times a day or as often as needed
Herpes
zoster, often known as shingles, is characterized by a painful crop
of blisters that erupts along the path of a nerve. The rash commonly
occurs on only one side of the body and usually affects the skin on
the chest, abdomen, or face. In older people, discomfort may continue
for months after the rash has disappeared. This prolonged pain is called
postherpetic neuralgia
Top
Insect
Repellent
Neem is
an excellent insect repellent. Its extracts have been approved by the
US Environmental Protection Agency for use on food crops. It is nontoxic
to birds, animals, beneficial insects or man and protects crops from
over 200 of the most costly pests.
Some of
the Insects
affected by Neem Products:
American
Cockroach: Reduces fecundity and molts, reduces number of fertile eggs.
Flea: Retards
growth, repels, inhibits feeding, disrupts growth, eggs fail to hatch.
Flea beetle:
Inhibits feeding.
Fire ant:
Inhibits feeding, disrupts growth.
Green leafhopper:
Inhibits feeding.
Head Lice:
Kills, very sensitive to neem oil - traditional use in Asia.
Housefly:
Inhibits feeding, disrupts molting, repels.
House cricket:
Disrupts molting.
House mosquito:
Toxic to larvae.
PLUS MANY
MORE...Read
Neem and
Encephalitis
One of the most impressive accomplishments of Neem against parasites
is its effectiveness against encephalitis. In a paper delivered to the
American Chemical Society at its annual meeting in March 1993 R.O. Larson
describes how an outbreak of Japanese encephalitis in India was eradicated.
This was accomplished by giving children two doses of crushed Neem leaves
daily
Introduction
The Neem
tree is indigenous to India. Indians have revered the neem tree for
a very long time. To millions of Indians neem has miraculous powers.
For centuries people of India have used neem twigs for cleaning their
teeth, treated skin infection with neem leaf juice, used it as a tonic
and kept away bugs with different neem extracts. It also formed part
of several rituals. The tree has been used in curing so many ailments
that it has been called "the village pharmacy".
Distribution
Nim or Neem, Azadirachta indica A.Juss belongs to the sub family : Meliodeae;
order: Meliales. It is believed that Neem originated in Asia and Burma.
However the exact origin is uncertain. Some believe it to be native
to the whole Indian subcontinent whereas others are of the opinion that
it belongs to dry forest areas throughout all of South and Southeast
Asia including Pakistan, Sri Lanka, Thailand, Malaysia and Indonesia.
Neem is
now widely distributed in many countries of the world by cultivation.
Indians migrating to African countries introduced neem into that continent.
Neem grows abundantly between Somalia and Mauritania. Neem has also
been introduced into Fiji Islands and from there it has spread to other
South Pacific islands. Neem is also cultivated in the West Indies, Australia
and some countries of Central and South America. Neem is grown in Southern
Florida and is being established in Southern California and Arizona
in the United States.
In India
neem is seldom found in the forest. It is mostly grown as an avenue
or shade tree and in variety of habitats. Neem is seldom leafless -
one of the reasons why it is prized in India. The Indian subcontinent
has nearly eighteen million neem trees. Most of them line the roadsides
or are found clustered around markets or backyards and provide great
relief from the sun. Neem grows to height of about 20 meters and a girth
of 25 meters. It grows well on dry, stony, clayey and saline soils.
It has a strong root system that extracts nutrients and moisture from
poor soils. Neem grows upto about altitude of 1,500 meters. It can withstand
high temperatures but cannot survive frost.
Agronomy
The compound leaves of neem appear smooth. However, closer examination
of young leaves near the shoot apex will reveal the presence of resin
secreting glands. The lower portions of the leaf stalk are covered with
extra floral nectaries that attract ants. Damaged tissues of the stem
secrete gum. Occasionally a milky white secretion is noticed from stems
prior to flowering and production of new leaves. It is also well known
that the green unripe fruits secrete a milky white latex, very bitter
in taste because of some limonoids, but apparently free from azadirachtin.
The neem
tree flowers between January and May in India although occasional flowers
can be found on trees during other months, particularly, August-September.
Trees in the southwest bloom first and there is a progression in the
blooming period from the south to north. Flower buds of neem open in
the evening and they are more scented at night and also secrete nectar
that attracts a variety of pollinators. Neem honey is very popular and
this has no azadirachtin.
Neem tree
takes considerable abuse. It can withstand pollarding (repeated topping
at heights above 1.5m) and coppicing (repeated topping at near ground
level) very well. This is possible because of the root system which
is large enough to feed a full grown tree.
A neem tree normally starts fruiting after 3-5 years. In about 10 years
it becomes fully productive. From the tenth year onwards it can produce
upto fifty kilograms of fruits annually. It’s lifespan is about
two centuries.
Neem is easily propagated by seeds. However, the seeds are viable only
for about three weeks after harvest under normal conditions of storage.
Stem and root cuttings can also be used to propagate neem. Neem tree
grows almost anywhere in the low land tropics. Its performance is best
in areas which have an annual rainfall of 400 - 1,200 mm. Even if the
maximum shade temperature soars past 50 C it thrives well. However,
it cannot withstand freezing or cold for long. It grows from sea level
up to heights of 1000m. The tap root of this tree is nearly twice the
height of the tree.
Neem grows well in dry infertile sites. It performs well even where
soils are sterile, strong and shallow. Neem also grows well in acid
soils. It is believed that fallen neem leaves which are slightly alkaline
(pH 8.2) are good for neutralizing acidity in the soil. The neem tree
however, cannot withstand waterlogging.
Neem grows
rapidly and yield timber for five to seven year. Weeds do not affect
its growth and it can dominate almost all competitions.
Chemistry
of Neem
Neem plants, as do all other plants, contain several thousands of chemicals.
Of special interest are the terpenoids that are unique to neem and some
related members of this family. More than a hundred terpenoids are known
from different parts of the neem plant. Of its biological constituents,
the most active and well studied compound is azadirachin. However, in
most traditional preparations of neem as pesticide or medicine a mixture
of neem chemicals are present and provide the active principles. Several
different kinds of azadirachitins (A to K) have been isolated,the most
abundant of which is Azadirachtin-A.
The neem
terpenoids are present in all parts of the plant, in the living tissues.
Recently, the site of synthesis and accumulation of the neem chemicals
has been identified as secretory cells. Secretory cell are most abundant
in the seed kernels. The secretory cell can be seen with iodine solution.
The bulk of the kernel is actually a pair of cotyledons of the seed.
In general, the kernels contain about 30-40 % oil. Triterpenoid content
of the kernels is about 2.5 to 3%. The azadirachtin content in the kernels
may vary from 0.2 to 0.6%. Besides the terpenoids, neem also contains
more than 20 sulphurous compounds responsible for the characteristic
smell of crushed seeds and neem oil. The gum of neem contains different
kinds of sugars.
Neem
as a Natural Pesticide
Neem is
attracting world wide attention in recent decades mainly due to its
bioactive ingredients that find increasing use in modern crop and grain
protection. This chapter discusses the methods by which the neem extracts
can be prepared by the farmer himself.
Neem Kernel
Extract
50 gm of neem kernel is required for use in 1 litre of water. The neem
kernel is pounded gently. It should be pounded in such a way that no
oil comes out. The outer coat is removed before pounding. This used
as manure. If pounded with seeds coat one and half times (75g) seeds
are required. The seeds that are used for preparation of neem kernel
extract should be atleast 3 months old and should not be used after
8 to 10 months. Before 3 months or after 8 months the azadirachtin quantity
is quite low in the seeds and hence it cannot be efficiently used for
pest control. The pounded neem kernel powder is gathered in a muslin
pouch and this is soaked overnight in the water. The pouch is squeezed
and the extract is filtered. To the filtrate an emulsifier like tween
80, sandovit, soap oil, nirma or soap cake powder is added. One ml of
emulsfier is added to one litre of water. The emulsifier helps the extract
to stick well to the leaf surface.
Remarks:
The kernel extract should be milky white in colour and not brownish.
The kernel extract does not control sucking insect like aphids, white
flies and the stem borers. In these cases one could go in for the use
of neem oil spray solution.
Neem leaf
Extract
For 5 litres of water, 1 kilogram of green neem leaf is required. Since
the quantity of leaves required for preparation of this extract is quite
high (nearly 80 kilograms are required for 1 hectare) this can be used
for nursery and kitchen gardens. The leaves are soaked overnight in
water. The next day the leaves are ground and the extract is filtered.
The extract is beneficial against leaf eating caterpillars, grubs, locusts
and grasshoppers. To the extract, emulsifier is added as mentioned for
kernel extract.
Remark:
There is no need to boil the extract. Boiling reduces the azadirachtin
content. Hence the cold extract is more effective. Some farmers prefer
to soak the leaves for about on week. However this creates a foul smell.
Neem Cake
Extract
100 gm of neem cake is required for 1 litre of water. The neem cake
is put in a muslin pouch and soaked in water. It is soaked overnight
before use in the morning. It is then filtered and emulsifier is added
at the rate of 1 ml for 1 litre of water. It is now ready for spraying.
Neem Oil
Spray
30ml neem
oil is added to 1 litre of water and stirred will. Only then will the
oil and water mix well. To this emulsifier is added (1ml/1litre). It
is very essential to add the emulsifier and mix properly. It should
be used immediately. Otherwise oil droplets start floating. A knapsack
sprayer is better for neem oil spraying in preference to a hand sprayer.
General
Remarks about Spraying
Spraying
should be undertaken in the morning or late in the evening. During hot
conditions the frequency of spraying should be more. In winter spraying
once in 10 days and in rainy season everyday spraying is recommended.
Insects
lay eggs on the underside of the leaves. Hence it is important to spray
under the leaf also.
While using
a power sprayer reduce the quantity of water used to half.
It is better
to use low concentration of extracts frequently.
As a general
guideline it can be said that each acre of land to be protected can
be sprayed with 60 litres of ready to use solution (not the concentrate).
Of course the volume may have to be varied depending on the exact condition
such as the intensity of the pest attack.
The original
article can be found at http://www.healthlibrary.com/reading/neem/chap5.htm
Directly
from Nature makes no claims about neem and its uses. This article should
only be used for informational purposes. Directly from Nature does not
sell Neem as a pesticide or insecticide, we sell Neem as Neem.