Field efficacy of certain chemical insecticides against chilli thrips
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A field experiment was conducted during Kharif season of 2015 at the central research farm of SHIATS, Allahabad. The occurrence of chilli thrips, Scirtothrips dorsalis in 2015 Kharif season was commenced from 35th standard week (August 3rd week) with an average 0.2% infestation. The chilli thrips population increased and gradually reached peak level of 5.6% infestation at 42nd standard week (October second week). 2 sprays revealed that all the treatments were significantly reducing the chilli thrips population. Among the pesticides evaluated, Spinosad (T4) and Dimethoate (T2) were superior in ...
A field experiment was conducted during Kharif season of 2015 at the central research farm of SHIATS, Allahabad. The occurrence of chilli thrips, Scirtothrips dorsalis in 2015 Kharif season was commenced from 35th standard week (August 3rd week) with an average 0.2% infestation. The chilli thrips population increased and gradually reached peak level of 5.6% infestation at 42nd standard week (October second week). 2 sprays revealed that all the treatments were significantly reducing the chilli thrips population. Among the pesticides evaluated, Spinosad (T4) and Dimethoate (T2) were superior in the management of chilli thrips. Followed by, Imidachloprid (T7), Methomyl (T5), Flubendamide (T1) and Fipronil (T6). This was followed by Cypermethrin (T3) which was recorded as least effective treatment within the insecticide treaments. The highest yield was recorded in T4 Spinosad (212.53 q/ha), followed by T2 (198.52 q/ha), T7 (181.13 q/ha), T5 (178.56 q/ha), T1 (170.42 q/ha), T6 (168.71 q/ha), T3 (159.02 q/ha) as compared to control To (80.44 q/h). It studied, the best and most treatment was T2 Dimethoate (1:12.30), followed by T4 Spinosad (1:12.29).
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