Evaluation of Bio-efficacy of Compatible Agrochemicals against Sucking Pests in Soybean

Methuku Anil *

Department of Entomology, University of Agricultural Sciences, Dharwad – 580005, Karnataka, India.

Shiddalingappa V Hugar

AICRP on Groundnut, MARS, UAS, Dharwad-580 005, Karnataka, India.

R. Channakeshava

AICRP on Soybean, MARS, UAS, Dharwad-580 005, Karnataka, India.

*Author to whom correspondence should be addressed.


Abstract

A study was conducted at Agricultural Research Station (UAS, Dharwad), Sankeshwar, Karnataka during Kharif 2022-23 to assess the effectiveness of various agrochemicals alone and in combinations against whiteflies and thrips in soybean. Fifteen treatments were tested with three replications each. Among the treatments, diafenthiuron 50 WP at a concentration of 1.25 g/l exhibited the lowest mean population of whiteflies and thrips, with 2.63 and 3.22 per three leaves, respectively. This performance was comparable with its combination treatments, includes diafenthiuron 50 WP @ 1.25 g/l combined with propiconazole 25 EC @ 1 ml/l and 19:19:19 @ 5 g/l (2.92 whiteflies and 3.50 thrips/3 leaves), as well as diafenthiuron 50 WP @ 1.25 g/l combined with tebuconazole 50 + trifloxystrobin 25 WG @ 0.5 g/l and 19:19:19 @ 5 g/l (3.19 whiteflies and 3.74 thrips/3 leaves). Combination treatments effectively reduced whiteflies and thrips population as alone treatments by without showing any phytotoxicity symptoms on soybean crop.

Keywords: Agrochemicals, compatibility, phytotoxicity, sucking pests, soybean


How to Cite

Anil, M., Hugar, S. V., & Channakeshava, R. (2024). Evaluation of Bio-efficacy of Compatible Agrochemicals against Sucking Pests in Soybean. UTTAR PRADESH JOURNAL OF ZOOLOGY, 45(11), 129–135. https://doi.org/10.56557/upjoz/2024/v45i114079

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