Field performance of newer insecticide Chlorfenapyr 240 SC, cyantraniliprole 10.26% OD and Dimethoate 30% EC against Tomato Whitefly (Bemisia tabaci) in Madhya Pradesh

Abstract

Investigations were conducted in College of Agriculture, Indore (Madhya Pradesh) to assess the performance of newer insecticide Chlorfenapyr 240 SC, Cyantraniliprole 10.26% OD and Dimethoate 30% EC against whitefly in tomato. The experiment consisted of eight treatments laid out in randomized block design replicated three times with spacing of 60 x 45 cm. All the alternate sprays of newer insecticides were found significantly superior over the untreated control. Among the various treatments the maximum reduction in insect number was calculated in T5-Chlorfenapyr 240 SC @ 480 ml/ha (91.66%) followed by T4- Chlorfenapyr 240 SC @ 288 g a.i. /ha(88.16%), T6-Cynantraniliprole 10.26%OD 100 ml/ha (87.16%), T7-Dimethoate 30% EC @ 150 gm/ha (84.81%) T3-Chlorfenapyr 240 SC @ 240 g a.i./ha (84.57%) and T2-Chlorfenapyr 240 SC @ 192 g a.i./ha (84.17%). The minimum reduction in population of whitefly was found in T1-Chlorfenapyr 240 SC @ 144 g a.i./ha (83.36%). The higher fruit yield also recorded in T5-Chlorfenapyr 240 SC @ 480ml/ha (32 t/ha) followed by T4- Chlorfenapyr 240 SC @ 288 ga.i./ha (27 t/ha).