1Department of Agricultural Entomology, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar-736 165, (West Bengal), India
Department of Zoology, Alipurduar College, Alipurduar, Jalpaiguri-736 122, (West Bengal), India
*Email of corresponding author: kaushik_apdcollege@rediffmail.com
Online published on 15 October, 2015.
Population suppression capacity of six selected pesticides on Coccinella septempunctata was assessed in brinjal cv. ‘Pusa purpal long’ during kharif season of 2005–08. Application of Bacillus thuringiensis (36.58%), followed by Beauveria bassiana (38.00%) was found least toxic supporting maximum number of beetle population while the maximum lethality was noted for DDVP (60.52%), followed by malathion (56.97%). Neemactin (43.61%) based solution and Avermectin (46.16%) was less lethal and was intermediate in nature in consideration of the toxicity of six insecticide formulation.
Insecticides, Lady bird beetle, Lethality
