Evaluation of Some Insecticides and Biopesticides for Management of Barley Aphid (Rhopalosiphum maidis)
Year: 2017
Type: article
Abstract: The bioefficacy of the treatments evaluated against aphid on barley crop showed that lowest population of 19.32, 20.81, 20.88, 20.95 and 21.13/ tiller was recorded in acetamiprid (0.004%), imidacloprid (0.005%), fipronil (0.01%), thiamethoxam (0.005%) and dimethoate (0.03), respectively and were found statistically at par in their efficacy. The Beauveria bassiana (1 g/ l), NSKE (5.0%), imidacloprid (8 g/ kg), thiamethaxam (8 g/ kg) and acetamiprid (8 g/ kg) registered 42.57, 42.97, 48.47, 49.26 and 51.60 aphids/ tiller, respectively. The highest aphid population was recorded in untreated control (81.23/ tiller). The data of seed yield revealed that maximum yield of 34.25 q ha-1 was recorded in the plots treated with imidacloprid (0.005%) followed by acetamiprid (0.004%), thiamethoxam (0.005%), fipronil (0.01%) and dimethoate (0.03%) which gave 33.85, 33.01, 32.90 and 32.58 q ha-1 seed yield, respectively and all these found statistically at par each other and proved significantly superior over rest of the treatments. The maximum net profit (Rs. 11444 ha-1) was recorded from plots treated with imidacloprid (0.005%) which gave benefit cost ratio of 7.43 followed by acetamiprid (0.004%), imidacloprid (0.005%), thiamethoxam (0.005) and dimethoate (0.03%) with benefit cost ratio of 8.66, 7.43, 5.42 and 8.04, respectively.
Authors: Pawan Kumar Choudhary, Suresh Jakhar, K.C. Kumawat
Institution: Sri Karan Narendra Agriculture University, Jobner
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2748535761