Evaluation of bio-efficacy and phytotoxicity of Sulfoxaflor 24% SC against grapes mealybug (Maconellicoccus hirsutus Green)

Abstract

The experiment on evaluation of bio-efficacy and phytotoxicity of Sulfoxaflor 24% SC in grapes was conducted at College of Horticulture, Bagalkot during the year 2019-20. Various formulations of Sulfoxaflor were evaluated in which Sulfoxaflor 24% SC @ 625 ml/ha recorded significantly highest mortality of mealy bug (63.01%) and it was found on par with Buprofezin 25% SC @ 1000 ml/ha (58.90%). Whereas Sulfoxaflor 24% SC @ 750 ml/ha (56.16%) and Clothianidin 50% WDG @ 250 g/ha (52.73%) were found on par which is followed by Imidacloprid 17.8 SL @ 250 ml/ha (45.20%) and Thiamethoxam 25 WG @ 250 g/ha (44.52%). Further, no phytotoxicity symptoms were observed on grape crop by application of the test chemical.