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The Neem Tree (Azadirachin-Indica A. Juss),

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The Neem Tree (Azadirachin-Indica A. Juss),
a Natural Pesticide Practice in Pakistan
By Mrs. Farzana Panhwar, May 2005

Author:

Farzana Panhwar (Mrs)

Address:

157-C, Unit No.2, Latifabad, Hyderabad
(Sindh), Pakistan

E-mail:

farzanapanhwar@hotmail.com
farzanapanhwar@yahoo.com

Fax:

92-21-5830826 and 92-221-860410

Publisher:

Digitalverlag GmbH, Germany


© 2005 Digitalverlag GmbH, Germany
Edition ChemLin


The Neem Tree, a Natural Pesticide Practice in Pakistan

The Neem Tree (Azadirachin-Indica A. Juss), a Natural Pesticide Practice in Pakistan

ABSTRACT
Insects, pests, fungus and bacteria attacks resulted in to heavy losses of crops. In order to protect them farmer
are compelled to use synthetic pesticides but they have shown negative effect on the environments and human
and health. The Scientist now are working on new source of pesticide, which are less harmful and environment
friendly. Azadirachin a triterpenoid extracted from neem seed and it oil used as insecticide by following mode
actions. * Antifeedants. * Repellents. * Distruptants of normal growth.
We raised neem on 8 acres of land with tree population of 108 trees/acres. Since neem is un-social tree and
does not flourish as monoculture, we planted another 108 trees of Syzinuim Cumminal between neem trees in
each now. Trees were treated with ground application, Foliar sprays with N:P:K and with micronutrients were
also applied to help fast growth of the trees. In the year 4 neem trees shed their leaves in the preflowering
stage. These leaves were collected and used as a mat of mulch under lychee, longan, peaches, guava, and
grapes. These trees are mulch year around by maintaining 10” thick layer of weeds growing between the tree
rows, due to mulch trees grow faster, fruit earlier, or attacked less by diseases and yield is 3 times that of nonmulch trees. On 50 % of the area under mulch we sprayed neem leaves to form a thin uniform layer about 1/2”
thick and above it piled the waste material consisting of chopped weeds. The other half of the area received only
mulch from cut-weeds. The average yield during the year 1997, from the two groups are given by the table
below.

AVERAGE YIELD PER TREE IN KGS
NAME OF
TREE CROP.

4” THICK NEEM MAT
PLUS 10” LAYER OF
MOWED WEEDS.

10” LAYER OF
MOWED WEEDS
ONLY.

INCREASE IN YIELD
DUE TO USE OF A
LAYER OF NEEM
LEAVES.

LYCHEE.

35.7

31.5

11.3

LONGAN.

49.2

46.1

6.7

GRAPE.

68.3

57.9

17.9

GUAVA.

76.9

72.3

4.9

PE...
The Neem Tree (Azadirachin-Indica A. Juss),
a Natural Pesticide Practice in Pakistan
By Mrs. Farzana Panhwar, May 2005
Author: Farzana Panhwar (Mrs)
Address: 157-C, Unit No.2, Latifabad, Hyderabad
(Sindh), Pakistan
E-mail: farzanapanhwar@hotmail.com
farzanapanhwar@yahoo.com
Fax: 92-21-5830826 and 92-221-860410
Publisher: Digitalverlag GmbH, Germany
www.ChemLin.com
© 2005 Digitalverlag GmbH, Germany
Edition ChemLin
www.ChemLin.com
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