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Vol. 10, Special Issue 10 (2021)

Evaluation of efficacies of newer insecticides against mango leafhoppers

Author(s):
Prasanthi SJ, Chalam MSV, Devaki K and Mohan Naidu G
Abstract:
An experiment was conducted to evaluate the efficacy of nine insecticides viz., Dinotefuron 20 SG @ 0.3 g l-1, Buprofezin (15%) + Acephate (35%) WP @ 2.5 g l-1, Flonicamid 50 WG @ 0.4 g l-1, Imidacloprid (40%) + Ethiprole (40%) 80 WG @ 0.6 g l-1, Lambda Cyhalothrin 5 EC @ 2.0 ml l-1, Spinosad 480 SC @ 0.3 ml l-1, Thiamethoxam (12.6%) + Lambda Cyhalothrin (9.5%) 247 ZC @ 1.0 ml l-1, Pymetrozine 50 WG @ 0.6 g l-1, Imidacloprid 17.8 SL @ 0.3 ml l-1 along with an untreated control. Pooled efficacies of these treatments revealed that Imidacloprid (40%) + Ethiprole (40%) 80 WG @ 0.6 g l-1 and Thiamethoxam (12.6%) + Lambda Cyhalothrin (9.5%) 247 ZC @ 1.0 ml l-1 have resulted in 95.68 and 94.88 per cent reduction of leafhopper population over control (ROC), respectively and were proved to be the most effective treatments followed by Buprofezin (15%) + Acephate (35%) WP @ 2.5 g l-1 (92.54 % ROC). The descending order of efficacy was Pymetrozine 50 WG @ 0.6 g l-1 (84.81 % ROC), Imidacloprid 17.8 SL @ 0.3 ml l-1 (77.45 % ROC), Lambda Cyhalothrin 5 EC @ 2.0 ml l-1 (73.65 % ROC), Flonicamid 50 WG @ 0.4 g l-1 (69.83 % ROC) and Dinotefuron 20 SG @ 0.3 g l-1 (68.10 % ROC) where the latter two were at par with each other. The least per cent reduction of leafhoppers (53.85 % ROC) over control was recorded with Spinosad 480 SC @ 0.3 ml l-1.
Pages: 385-391  |  60 Views  9 Downloads
How to cite this article:
Prasanthi SJ, Chalam MSV, Devaki K and Mohan Naidu G. Evaluation of efficacies of newer insecticides against mango leafhoppers. The Pharma Innovation Journal. 2021; 10(10S): 385-391.
The Pharma Innovation Journal