Reshu1*, Shashi Mala2, Laxmikant3, Rajiv Kumar Sirohi1 and Satendra Kumar4
1Krishi Vigyan Kendra, Bulandshahr, Uttar Pradesh-20300, 2IIMT, College, Aligarh, Uttar Pradesh-202001 and 3Krishi Vigyan Kendra, Rampur, Uttar Pradesh-244901
4Department of Soil Science, S.V.P. University of Ag. & Tech. Meerut (U.P.)
Email: reshu_258@rediffmail.com
Received-06.05.2017, Revised-20.05.2017
Abstract: Field trials were conducted in sugarcane crop for management of white grub (Holotrichia sp.) using talc based formulations of entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana and chemical insecticides namely carbofuran 3G, Chloropyriphos 20 EC and Fipronil 40%+ Imidaclorpid 40% WG. Pretreatment count of white grub larvae was taken for every individual microplot. Fipronil 40%+ Imidaclorpid 40% WG @ 375 gm/ha proved to be the best treatment against white grub and provided up to 100% control of white grub. Chloropyriphos was second most effective treatment and checked 100% soil population of white grub followed by M. anisopliae which resulted in 80.97% decrease in soil population ofwhite grub. After economic analysis M. anisopliae appeared to be significantly cost effective as compare toFipronil 40%+ Imidaclorpid 40% WG. Net return of Rs. 31153/ha was recorded in this treatment whereas, net return of Rs. 27816/ha was recorded in case of M. anisopliae.
Keywords: White grub, M. anisopliae, B. bassiana, Biological control, Chemical control
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