Vol. 11, Special Issue 7 (2022)

Author(s):
Shallu Raina, Uma Shankar, Devinder Sharma and Yousra Mukhtar

Abstract:
Field experiments were carried out at Entomology Farm, SKUAST-J, Chatha for two consecutive years (2018 and 2019) to evaluate the bio-efficacy of selective insecticides against aphids on strawberry. The results of study revealed that during both the years, lowest mean aphid population was observed in Imidacloprid 17.8SL treated plots followed by Fipronil 5SC. Chlorpyriphos 20EC, Quinalphos 25EC and Dichlorvos 76EC offered moderate aphid control on strawberry wherein Chlorpyriphos 20EC and Quinalphos 25EC were at par with each other in reducing the aphid population. Neem oil behaved as least effective treatment in reducing aphid population and was found at par with control. Moreover, cost-benefit ratios were worked out to determine the most effective and economical treatment. The highest cost-benefit ratio was obtained in plots treated with Imidacloprid (1:19.67) and was closely followed by Fipronil (1:19.37) and Dichlorvos (1:18.69) treatments. The least cost benefit ratio was obtained with Neem oil (1:14.84) treated plots.