BIOEFFICACY OF NEONICOTINOID INSECTICIDES AGAINST THRIPS PEST (Thrips palmi) ON GRAPE VINE (Vitis vinifera L.)
UTTAR PRADESH JOURNAL OF ZOOLOGY,
Page 107-113
Abstract
The grape thrips (Thrips palmi), has great importance that causing huge losses to commercial production of grapes (Vitis vinifera L.). It has become a serious pest of grape vine in West Bengal, India. The neonicotinoid insecticides viz. spinetoram 10% w/w + sulfoxaflor 30% w/w WG @ 100, 120 and 140 a.i. g /ha, spinetoram 12% SC w/v (11.7%w/w), sulfoxaflor 24% w/v (21.8% w/w) SC, emamectin benzoate 5% SG and buprofezin 25% SC @ 30, 90, 11 and 250 a.i. g /ha respectively were tested for their efficacy against thrips. Spinetoram 10% w/w + sulfoxaflor 30% w/w WG @ 140 g a.i./ha proved the most effective against thrips on grapes and it was at par with spinetoram 10% + sulfoxaflor 30% WG @ 120 g a.i./ha. Same trends have also been reflected in yield. The tested insecticides were also found safer to predators i.e. Menochilus sp., Syrphus sp. and Chrysoperla sp.
Keywords:
- Efficacy
- insect growth regulator
- predators
- safe pesticides
- thrips
- yield
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