Efficacy of Insecticides against Major Insects of Tomato in Manipur
Rhodesh Salam
Department of Entomology, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema-797106, Nagaland, India.
H. Shila Devi *
Department of Entomology, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema-797106, Nagaland, India.
Pankaj Neog
Department of Entomology, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema-797106, Nagaland, India.
L. Imtinaro
Department of Entomology, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema-797106, Nagaland, India.
Y. Suraj Singh
Department of Entomology, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema-797106, Nagaland, India.
H. Meronbala Devi
Department of Plant Pathology, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema-797106, Nagaland, India.
W. Ramdas Singh
Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science and A. H. CAU (Imphal), Jalukie-797110, Nagaland, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was conducted to evaluate the efficacy of some insecticides viz., Emamectin benzoate 5% SG (11 ga.i./ha), imidacloprid 17.8% SL (22.5 g a.i/ha), Neem oil (3 ml/l), Beauveria bassiana (0.2 ml/l), fipronil 5% SC (50 g a.i/ha) against major pests of tomato (Lycopersicon esculentum Mill.). There were six treatments arranged in randomized block design with four replications. Fruit borer, whiteflies, aphids and leaf miner were found to be the major insect pests of tomato. Among the insecticide used, imidacloprid 17.8% SL was found to be the most effective for management of sucking pest viz., Whiteflies, Aphids, Thrips, Mealybugs, Jassids while emamectin benzoate was found more effective on tomato fruit borer. Beauveria bassiana was found least effective against all the insect pests.
Keywords: Tomato, insect pests, efficacy, insecticides