Abstract:
Spodoptera litura is one of the serious insect pests. This pest attack on various crops including cotton, tobacco, corn, maize. It has been noticed that S. litura attack on cotton and destroy the leaves. Chemical insecticides have traditionally used for itscontrol but the development of resistance and hazardous effects of the insecticides prompt the development of new chemistry insecticides and the biocontrol agents. The study was performed to determine the efficacy of entomopathogenic fungi Metarhizium anisopliae alone and in combination with new chemistry insecticides against the larvae of S. litura under laboratory conditions (25±2?C, 65-70% RH). Results showed that Leufenuron give 80%, 77.77% and 64.44% mortality after 24, 48 and 72 hours. Results of Emamectin benzoate give 71.11%, 57.70% and 48.89% while Chlorantrniliprole give 93.30%, 86.66% and 68.89% mortality after 24, 48 and 72 hours respectively. Results of the pathogenicity of M. anisopliae was effective with 77.78%, 71.10% and 57.77% mortality when treated with 1×108, 1×107 and 1×106 conidial suspension respectively. The combine treatments of M. anisopliae and Leufenuron (1×108 + 10ppm)caused that maximum means percentage mortality of 93.33% of S. litura. The combination of M. anisopliae and Emamectin benzoate (1×108+10ppm) showed the maximum mean percentage mortality of 77.77%. The combine treatments of M. anisopliae and Chlorantrniliprole(1×108 + 10ppm) showed that maximum means percentage mortality of 97.33% of S. litura. The results indicated the alone and combine effects of entomopathogenic fungi and new chemistry insecticides are the viable option for the control of S. litura under laboratory conditions. Further this research is necessary to validate these findings and assess their effectiveness under field conditions. The results also contribute to the development of sustainable and environmentally friendly strategies for the management of S. litura as well as also contribute the cotton industry by providing good quality of cotton.
Page(s):
268-268
DOI:
DOI not available
Published:
Journal: Abstract Book on International Conference on Food and Applied Sciences (ICFAS-23) 3-5 August 23, Volume: 0, Issue: 0, Year: 2023
Keywords:
Chlorantrniliprole
,
Emamectin benzoate
,
Leufenuron
,
Spodoptera litura¸Metarhizium anisopliae