Department of Agricultural Entomology, Bidhan Chandra Krishi Viswavidyalaya, P.O. Krishi Viswavidyalaya, Mohanpur-741252, West Bengal, (India).
*Address for correspondence: C/o, Shri Anindya Chakrabarti, North Nimta, Paikpara, Amrakanan, P.O. Nimta, Calcutta-700049, West Bengal, (India).
1A part of approved Ph.D. thesis submitted by S. Chakraborti to the Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, (West Bengal).
The bioefficacy of four benzophenylureas, viz., triflumuron, diflubenzuron, teflubenzuron and flufenoxuron, against the chickpea pod borer, Heliothis armigera (Hüb.), was studied in the field. The chemicals were applied @ 25,50,75 and 100 g a.i/ha. All the chitin inhibitors were effective excepting at the lowest concentration. But, diflubenzuron was the most effective. These chemicals interfered in the process of chitin biosynthesis and caused moulting failure and deformity in the wide populations. Also, mosaics were recorded.
