Agricultural Science Digest

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Agricultural Science Digest, volume 29 issue 2 (june 2009) :

SEASONAL OCCURRENCE OF PULSE POD BORER HELICOVERPA ARMIGERA (L.) ON CHICK PEA AT EASTERN U.P. REGION

V. Reddy, P. Anandhi, S. Elamathi, Savita Varma
1Department of Plant Protection, Allahabad Agricultural Institute Deemed University, Allahabad-211 007, India

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Cite article:- Reddy V., Anandhi P., Elamathi S., Varma Savita (2024). SEASONAL OCCURRENCE OF PULSE POD BORER HELICOVERPA ARMIGERA (L.) ON CHICK PEA AT EASTERN U.P. REGION. Agricultural Science Digest. 29(2): . doi: .

ABSTRACT

Gram pod borer, Helicoverpa armigera is the most damaging pest where pulse crop is grown.
The incidence of the pod borer, Helicoverpa armigera in chick pea commenced from second
week of February i.e. in the early part of 1st fortnight of February, with 0.05 mean larval population/
plant. The larval populations started increasing and reached its maximum of 12.97 mean larval
population/plant during 4th week of March (12th standard week). The population has significantly
positive correlation with both minimum and maximum temperature and the correlation coefficient
being 0.71 and 0.82, respectively. The correlation coefficient of morning and afternoon relative
humidity was -0.66. The rainfall and larval population showed positive correlation coefficient
(0.03) but it was non-significant. The wind velocity and the sunshine hours showed positive non
significant correlation with larval population

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