author(s)
Sachin Kumbar and LK Rath

abstract
The field experiment was conducted to test the efficacy of chitin synthesis inhibitors on crucifer leaf webber, Crocidolomia binotalis (Zell) in cabbage, during the rabi seasons of 2017-18 and 2018-19. The study revealed that, diflubenzuron 25 WP @1g/l was the best treatment in controlling cabbage leaf webber followed by novaluron 10 EC 1.25ml/l and buprofezin 25 SC @1.25ml/l. The diflubenzuron 1g/l reduced the crucifer leaf webber infestation by 70.57 percent and 72.05 percent in the year 2017-18 and 2018-19, respectively and all the Chitin synthesis inhibitors caused 60 to 71 and 63 to 72 percent reduction in pest population, while neem oil eliminated 45 and 55 percent crucifer leaf webber population during the year 2017-18 and 2018-19, respectively.