1 Department of Entomology, College of agriculture Dhule- 424004, Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra, India.
2 Department of Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra, India Rahuri-413722, Maharashtra, India.
3 Department of Horticulture, Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra, India Rahuri-413722, Maharashtra, India.
DOI : https://doi.org/10.58321/AATCCReview.2024.12.03.37
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Abstract
The field evaluation was carried out to assess the performance of eight insecticides (Dimethoate 30 EC, thiamethoxam 25 WG, imidacloprid 17.8 SL, quinalphos 25 EC) and biopesticides (NSE 5 %, Azadirachtin 1 % and L. lecanii 1.15 WP) at MPKV, Rahuri in during both 2019-20 and 2020-21. A randomized complete block design (RCBD) with an individual plot size of 2 m × 1.5 m. The interval between the foliar applications was 10 days, the first application was given after the pest incidence was noticed, with the help of a knapsack sprayer. The treatment imidacloprid 17.8 SL @ 25 g a.i. ha-1 and thiamethoxam 25 WG @ 25 g a.i. ha-1 were found to be most effective in reducing the population of fenugreek aphids, Myzus persicae (Sulzer) pursued by dimethoate 30 EC @ 300 g a.i. ha-1, and azadirachtin 1% @ 2 ml/l. The imidacloprid 17.8 SL @ 30 g a.i. ha-1and thiamethoxam 25 WG @ 25 g a.i. ha-1 treated plots obtained the highest yield of 7.44 t ha-1 and 7.27 t ha-1, respectively. The highest ICBR was recorded in the treatment of imidacloprid (1:30) and thiamethoxam (1:26) treated plots. Neonicotinoids are more effecive against aphids than other tested insecticides.