Vol. 10, Issue 9 (2021)

Author(s):
Akash V Kachot, Dharmrajsinh M Jethva and Divya S Patel

Abstract:
The present investigation was framed with an aim to evaluate the bio-efficacy of Beauveria bassiana against onion thrips. The different treatments evaluated for their laboratory efficacy against T. tabaci showed that the treatment of dimethoate 30 EC @ 1 ml/litre alone and in combination with half dose (2.5 g/litre) of B. bassiana 1.15% WP recorded the highest (95.00%) mortality after 5^th day of its application. Whereas, spinosad 45 SC @ 0.30 ml/litre alone and in combination with half dose (2.5 g/litre) of B. bassiana 1.15% WP and alone application of B. bassiana 1.15% WP @ 5 g/litre were found next better treatments with 86.67 to 92.50% nymphal mortality.