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Vol. 10, Special Issue 6 (2021)

Infestation levels and seasonal incidence of major pests of cotton and their natural enemies in West Bengal

Author(s):
Pronobesh Halder and Nihal R
Abstract:
Cotton (Gossypium spp.) is a major cash crop that is inherently attacked by a number of pests owing to increased and injudicious rate of insecticide application. Employ proper and timely management strategy and to minimize the injudicious use of pesticides in cotton it is necessary to study the incidence behaviour of the pests. An experiment was conducted in the year 2017-18 at the Institutional research farm (C-Block) of Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, West Bengal aiming to evaluate the infestation level and seasonal incidence of major pests of cotton and their natural enemies. From the results it is concluded that the sucking pests of cotton viz. jassids, whitefly and red cotton bug incidence begins from the first week of crop growth and continues to achieve peak growth in the months September and October. Major borer pest viz. Helicoverpa armigera maintained a relatively low population during vegetative stage but increase in population was observed in boll stage.
Pages: 96-99  |  736 Views  225 Downloads
How to cite this article:
Pronobesh Halder and Nihal R. Infestation levels and seasonal incidence of major pests of cotton and their natural enemies in West Bengal. The Pharma Innovation Journal. 2021; 10(6S): 96-99.

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