1Department of Plant Breeding and Genetics, Sardarkrushinagar Dantiwada Agricultural University (SDAU), Dantiwada, Gujarat, India
College of Agriculture, Sri Karan Narendra Agriculture University (SKNAU), Jobner, Lalsot, 303511, Dausa, Rajasthan, India
*Corresponding author E-mail: rkmeena.ento@sknau.ac.in
Online published on 15 October, 2020.
Bioefficacy of insecticidal formulations namely acetamiprid 20 per cent SP (0.4g L−1 of water), imidacloprid 17.8 per cent SL (0.33 mL L−1), quinalphos 25 per cent EC (2.0 mL L−1), thiamethoxam 25 per cent WG (0.5g L−1), neem oil 2 per cent (20 mL L−1), karanj oil 2 per cent (20 mL L−1) against the aphid, Aphis cracivora Koch in clusterbean is reported. The most effective insecticides were imidacloprid, thiamethoxam and acetamiprid respectively. During the year 2015, maximum population reduction over control was found after 7 d of application of second spray of imidacloprid and thiamethoxam (75.97 and 72.92%) respectively. A similar trend was observed in 2016 and 2017. Thus, imidacloprid was the most effective against Aphis cracivora.
Imidacloprid, Thiamethoxam, Clusterbean, Bean aphid, Aphis cracivora,
