Enhancement of bio-efficacy of insecticides on spray tank mixing with Wetcit surfactant on chilli crop Jaiswal Deepak Kumar*, Kumar Jitendra, Char Giriraj, Kumar Sanjay Bio Science Division, Institute of Pesticide Formulation Technology, Sector 20, Udyog Vihar, NH-8, Gurugram-122 016, Haryana, India *e-mail: deeraj3024@gmail.com
Online Published on 11 January, 2024. Abstract The compatibility and effectiveness of Wetcit surfactant used as a spray tank mix with insecticide formulations against mites [Polyphagotarsonemus latus (Banks)] on the Chilli crop was evaluated. The treatments were taken as propargite 57 per cent EC @ 1500 ml ha−1, emamectin benzoate 5 per cent SG @ 200 g ha−1 and buprofezin 25 per cent SC @ 300 ml ha−1 alone, and as a tank mix with wetcit @ 500 ml ha−1 and also with their lower dose rate 1350 ml ha−1, 180 g ha−1 and 270 ml ha−1, respectively. Wetcit alone @ 500 ml ha−1 and untreated control (water alone) treatments were also taken for comparison. The mite population recorded at 5, 10 and 15 days after each spray showed that Wetcit used with insecticidal formulations resulted in low mite population than sole insecticidal treatments (without mixing with surfactant). Thus, wetcit @ 500 ml ha−1 used with propargite 57 per cent EC @ 1350 and 1500 ml ha−1, emamectin benzoate 5 per cent SG @ 180 and 200 g ha−1 and buprofezin 25 per cent SC @ 270 and 300 ml ha−1 resulted to be effective with low mite population at each observation time and increased chilli fruit yield. No phytotoxicity to chilli crop was observed at each observation time. Thus, Wetcit surfactant was compatible with tested insecticide formulations and enhanced their effectiveness against mites in chilli crop. Top Keywords Wetcit, Insecticides, Chilli, Surfactant, Mite. Top |