Bio efficacy of ready-mix insecticides against rugose spiralling whitefly, Aleurodicus rugioperculatus Martin infesting coconut

Abstract

The bio efficacy evaluation of ready-mix insecticides against Aleurodicus rugioperculatus infesting coconut at two different locations of Saurashtra region viz., Sutrapada and Simar revealed that the lowest adult population per frond per palm was recorded in palm treated with Pyriproxyfen 10 + Bifenthrin 10 (20 EC), with 37.78 and 35.52 adults, respectively. This treatment was followed in effectiveness by Diafenthiuron 47 + Bifenthrin 9.40 (56.40 SC), Fipronil 5 + Buprofezin 20 (25 SC) and Pyriproxyfen 5 + Fenpropathrin 15 (20 EC). The highest RSW population among the treated palm was observed in the treatment with Spirotetramat 11.01 + Imidacloprid 11.01 (22.02 SC), which was statistically at par with Acephate 50 + Imidacloprid 1.08 (51.08 SP).