Laboratory Bioassays to Study the Efficacy of Diamides against Leucinodes orbonalis (Guenee) of Brinjal

G. Prashanth *

Department of Agricultural Entomology, College of Agriculture, Vijayapur, India.

Sunitha N D

Department of Agricultural Entomology, College of Agriculture, Vijayapur, India.

V. Chavan S.S

Department of Agricultural Entomology, College of Agriculture, Vijayapur, India.

Shiva Kumar V

Department of Agricultural Entomology, College of Agriculture, VNMKV, Parbhani, India.

*Author to whom correspondence should be addressed.


Abstract

This study was undertaken with the objectives to investigate the toxicity of insecticides against larval stage of L. orbonalis in the laboratory. Management stratagies of the pest requires frequent spraying of chemical insecticides. Due to continuous spraying of insecticides L. orbonalis had developed a resistance to different insecticides that are urgently needed to test new molecules. In this bioassay, seven insecticides such as Cyantraniliprole 10OD, chlorantraniliprole 18.5SC, flubendiamide 480SC thiodicarb 75WP, methomyl 40SP, cartap hydrochloride and profenophos 50EC belonging to different insecticides groups were tested against L. orbonalis in the laboratory. In this bioassay larval mortality showed increasing trend with maximum percent mortality observed at 72HAT. All the treatments were found significantly superior over UTC. Among the seven insecticides tested against L. orbonalis, three diamides were found to be significantly superior. Cyantraniliprole 10OD recorded significantly highest percent larval mortality (97.26%), followed by chlorantraniliprole 18.5SC (94.14%) flubendiamide 480SC (88.45%), thiodicarb 75WP (77.53%), methomyl 40SP (71.50%), cartap hydrochloride 50SP (68.04%) and profenophos 50EC (65.88%). It is suggested that diamides may be used for the control of L. orbonalis.

Keywords: Leucinodes orbonalis, brinjal, chemical insecticides, chlorantraniliprole


How to Cite

Prashanth, G., Sunitha N D, V. Chavan S.S, & Shiva Kumar V. (2024). Laboratory Bioassays to Study the Efficacy of Diamides against Leucinodes orbonalis (Guenee) of Brinjal. Journal of Experimental Agriculture International, 46(5), 110–118. https://doi.org/10.9734/jeai/2024/v46i52361

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