Vol. 10, Special Issue 5 (2021)

Author(s):
Deepak Jain, Hasmukh Kumar, Bhagwat Singh Chouhan and Bahadur Singh and Harish Sumeriya

Abstract:
The field experiment was carried out in the pre-kharif season of 2020 at instructional farm of Vidya Bhawan Krishi Vigyan Kendra, Udaipur, Rajasthan, India to assess the efficacy of different bio-pesticides against sucking pests of okra. The experiment was laid out in randomized complete block design with three replications for each treatment. .Seed treatment with Imidacloprid 600 FS (10 ml / kg seed) and two sprays of imdacloprid 17.8% SL (0.3 ml per litre) at 40 and 60 DAG recorded lowest mean population of whiteflies and jassids (3.90 whiteflies &14.96 jassids/15 leaves).It was followed by seed treatment with Imidacloprid 600 FS (5 ml / kg seed) and two sprays of imdacloprid 17.8% SL (0.15 ml per litre) at 40 and 60 DAG, (4.67 whitefly and 17.59 jassid /15 leaves). Among the different bio-pesticides used neem oil, NSKE and butter milk were also found effective against the targeted sucking pests. Therefore, neem oil can be used as an alternative eco– friendly management option for the sucking pests of okra. Among the microbials, Beauveria bassiana and M. anisopliae were less effective as compared to other method in reducing the whitefly population, yet found superior over control.