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Vol. 12, Special Issue 9 (2023)

Toxicity of insecticides, fungicide, and their combinations against first instar larvae of Spodoptera litura (F.) on soybean, Glycine max (L.) Merrill

Author(s):
Gunjan Kandpal and RP Srivastava
Abstract:
The present study was conducted in Insecticides toxicology laboratory, Department of Entomology, G.B. Pant University of Agriculture and Technology, Pantnagar. One fungicide, five insecticides and their combinations were tested against first instar larvae of Spodoptera litura and observations were recorded on percent mortality and mean leaf area consumed by larvae. Results showed that all treatments were significantly superior over control. Emamectin benzoate 5SG @ 0.002% performed best individually as it recorded highest per cent mortality (90% and 100%, mean leaf area consumed (MLAC)= 0.4 cm2/larva and Antifeedant activity(AA)= 22.66% at 24HAE and 48HAE, respectively), it was followed by Spinetoram 11.7SC @ 0.002%, Novaluron 5.25 + Indoxacarb 4.5SC @ 0.03%, Indoxacarb 14.5SC @ 0.002% and Flubendiamide 39.35SC @ 0.01%. When these insecticides were mixed with fungicides, Fluxapyroxad 167g/l+ Pyraclostrobin 333g/l + Spinetoram 11.7SC @ (0.03 + 0.01%) showed maximum percent mortality (93.33% and 100% at 24HAE and 48HAE, respectively) and maximum reduction in feeding (MLAC= 0.23 and 0.16 cm2/larva; Antifeedant activity= 98.64, 100, 100% at 24HAE and 48HAE, respectively) among all the treatments.
Pages: 49-52  |  177 Views  72 Downloads
How to cite this article:
Gunjan Kandpal and RP Srivastava. Toxicity of insecticides, fungicide, and their combinations against first instar larvae of Spodoptera litura (F.) on soybean, Glycine max (L.) Merrill. The Pharma Innovation Journal. 2023; 12(9S): 49-52.
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