Efficacy of Sulfoxaflor 12%SC Against Aphids Complex and <i>Coccinella septempunctata</i> L. in Wheat

Abstract

Efficacy of dosages of sulfoxaflor 12%SC were evaluated for the control of foliar aphids under Contract Research Project on wheat during rabi seasons of 2014-15 and 2015-16 at the research farm of ICAR- Indian Institute of Wheat and Barley Research, Karnal, Haryana. The standard check insecticides thiamethoxam 25WDG and quinalphos 25EC were included along with sulfoxaflor, and all the treatments were found to be significantly superior. The incidence of aphids/ shoot/ plant was significantly less with sulfoxaflor 12 SC @ 24, 27 and 30 g a.i./ ha with 94.54, 95.27 and 96.03% reduction, respectively; these being at par with each other, followed by thiamethoxam 25WDG @ 12.5 g a.i./ ha and quinalphos 25EC @ 250 g a.i./ ha. The seven-spotted ladybird beetle Coccinella septempunctata L. was the main natural enemy observed in the crop, and its counts were the least (1.50/ m2) with thiamethoxam 25WDG @ 12.5 g a.i./ha at 14 DAS. The pooled data revealed that the yield was significantly more with sulfoxaflor 12SC @ 24, 27 and 30 g a.i./ ha (52.21, 52.62 and 54.32 q/ ha) followed by thiamethoxam 25WDG @ 12.5 g a.i./ ha (49.87 q/ ha) which was at par with quinalphos 25EC @ 250 g a.i./ ha (47.73 q/ha). Considering incremental cost benefit ratio, sulfoxaflor 12% SC @30 g a.i/ ha (1:2.70) is the most economical, and no phytotoxicity symptoms were observed at its doses @30 and 60 g a.i/ ha.