Indian Institute of Horticultural Research, Bangalore-560 080.
* Contribution No. 1181 of Indian Institute of Horticultural Research, 255, Upper Palace Orchards, Bangalore - 560 080.
Efficacy of three granular insecticides has been tested against Rhizoctonia solani Kuhn, the incitant of root rot of French bean, both in vitro and under field conditions. Carbofuran inhibited the radial growth of the fungus more significantly at all the concentrations than phorate or disulfoton. In both field trials pre-emergence mortality was minimum in carbofuran applied @ 2 Kg ai/ha followed by phorate and disulfoton. Post-emergence mortality ranged from 3.8 to 8.46% in different treatments as compared to 16.2 to 30.17% in control. Yield of green pods was also higher in these treatments than control.
