Bio-efficacy of newer insecticides against mulberry thrips

Abstract

A field experiment on Bio-efficacy of newer insecticides against mulberry thrips was conducted in V-1 mulberrygarden during 2020. The study revealed that fipronil 5 SC @ 1 ml/l was the best treatment in reducing the thrips populationfrom 29.60 to 3.01 thrips per top three leaves with 90.01 per cent reduction over untreated control after two sprays on30 and 45 days of pruning. While, flonicamid 50 WG @ 0.6 g/l (3.80 thrips/top three leaves) was the next best insecticide.It was followed by flufyradifurone 20 SL @ 0.1 ml/l (4.82 thrips/top three leaves) and diafenthiuron 50 WP @ 0.5 g/l(5.50 thrips/top three leaves). While, dinotefuran 20 SG @ 0.4 g/l (6.31 thrips/top three leaves) was in line with diafenthiuron50 WP. Dichlorvos 76 EC @ 1 ml/l was found to be inferior among the chemical approaches in reducing thrips population(7.31 thrips/top three leaves). Whereas, water sprayed plants recorded thrips population of 19.26 per top three leaves.Untreated control registered significantly higher population of thrips (30.15 thrips/top three leaves)