Management of Helicoverpa armigera (Hübner) in Chick pea by insecticides
Rajesh Kumar, M. Chakravarty, Palash Mondal
Abstract
Rajesh Kumar, M. Chakravarty, Palash Mondal
Abstract
All the treatments proved effective in reducing mean larval population (3.23–6.99 and 4.03–6.66 larvae/metre row length (MRL) as against untreated control 11.31 and 13.60 larvae/MRL, after first and second spraying, respectively. Mean pod damage in different treatments was observed to the tune of 5.3 – 28.7% against 35.7% in untreated control and weight loss of 2.4–14.3% against 21.9% in control. The grain yield was significantly higher in various treatments (7.85–12.13 q/ha) over control (6.93 q/ha).
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All the treatments proved effective in reducing mean larval population (3.23–6.99 and 4.03–6.66 larvae/metre row length (MRL) as against untreated control 11.31 and 13.60 larvae/MRL, after first and second spraying, respectively. Mean pod damage in different treatments was observed to the tune of 5.3 – 28.7% against 35.7% in untreated control and weight loss of 2.4–14.3% against 21.9% in control. The grain yield was significantly higher in various treatments (7.85–12.13 q/ha) over control (6.93 q/ha).
Key concepts: Helicoverpa armigera, Point of delivery, Veterinary medicine, Larva, Grain yield, Biology, Population, Forensic science