Vol. 11, Special Issue 8 (2022)

Author(s):
SS Gamit, CB Varma and MR Dabhi

Abstract:
The laboratory experiment was conducted at Entomology laboratory, Department of Entomology, BACA, AAU, Anand during summer and kharif, 2021 to determine the bio-efficacy of different acaricides and biopesticides against two spotted spider mite, T. urticae by using Completely Randomized Design (CRD) with three replications. And the result of bio-efficacy of different acaricides revealed that the highest mite mortality (99.97%) with treatment spiromesifen 22.9 SC @ 0.02% and it was at par with abamectin 1.9 EC @ 0.00057%, fenazaquin 10 EC @ 0.012%, propergite 57 EC @ 0.014%, ethion 10 SC @ 0.05%, diafenthiuron 10 SC @ 0.06% and etoxazole 10 SC @ 0.008%which caused 99.97% mortality after 24 hr of treatment. Whereas, the lowest mite mortality observed with treatment chlorfenapyr 10 SC 0.015% (56.80%) and dimethoate 30 EC 0.03% (56.66%) after 24 hr of treatment. While, among nine biopesticides evaluated, the highest mortality was found with treatments Lecanicillium lecanii (89.97%) followed by garlic bulb extract 10% (79.97%) and eucalyptus leaf extract 10% (79.97%) after 72 hr of treatment.