Cotton is an important commercial crop in India and plays a key
role in national economy.For the past two decades, the national
average of 440 kg/ha has not increased when compared to world
average of 682 kg/ha. About 134 species of arthropods were found to
be associated with the cotton crop in Punjab, of which bollworms
cause serious damage. Among the bollworms, Helicoverpa armigera is
a very serious polyphagous pest.Biological, cultural and chemical
methods have been used to attempt its control.The extensive and
indiscriminate use of conventional insecticides as well as
synthetic pyrethroids against H. armigera has resulted in
development of resistance to various insecticides.A novel method of
controlling this pest is use of Bt cry toxin from a soil bacterium,
Bacillus thuringiensis (Bt).Since its release has been able to
reduce the use of chemical insecticide, thereby lowering the risks
pertaining to environmental hazards, human health and production
costs.The insertion of an additional Bt gene encoding for a
different toxin (Cry2Ab) into current Bt cotton cultivars
containing cry1Ac gene may provide additional activity on
lepidopteran pests and would improve pest control val
General
Imprint: |
Lap Lambert Academic Publishing
|
Country of origin: |
Germany |
Release date: |
December 2011 |
First published: |
December 2011 |
Authors: |
Manpreet Kaur Saini
• Ashok Dhawan
|
Dimensions: |
229 x 152 x 10mm (L x W x T) |
Format: |
Paperback - Trade
|
Pages: |
172 |
ISBN-13: |
978-3-8473-0147-9 |
Categories: |
Books
|
LSN: |
3-8473-0147-0 |
Barcode: |
9783847301479 |
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