Vol. 12, Special Issue 11 (2023)

Author(s):
BN Chaudhari, VR Dhepe, PR Panchbhai and VJ Tambe

Abstract:
Field demonstrations were conducted at Jambhali (Sadak), Tah. Sakoli, district- Bhandara on 13 farmers field on 5.2 ha (0.4 ha/farmer) by Agriculture Research Station, Sakoli in Bhandara district during kharif 2018. Demonstration plot consist four release Trichogramma japonicum @ 50,000 eggs /ha at weekly interval for stem borer management and application of Metarhizium anisopliae @ 2.5 kg/ha at the initiation of plant hopper, after withdrawn of water from paddy bundhies and it was compared with farmer practice plot. The results revealed that four release of Trichogramma japonicum was found significantly more effective with lowest incidence of stem borer i.e., 2.70 percent dead heart and 3.09 percent white ear head in demonstration plots as compared to farmer practice plots with i.e., 5.37 percent dead heart and 5.61 percent white ear head. Similarly, application of Metarhizium anisopliae was also found significantly effective against plant hoppers with minimum incidence demonstration plots (white backed plant hopper- 2.14 no./hill and brown plant hopper- 2.37 no./hill) as compared to farmer practice plots (white backed plant hopper- 2.67 no./hill and brown plant hopper- 3.24 no./hill). Higher grain yield of 36.49 q/ha was harvested from demonstration plots as compared to farmer practice plots (34.08 q/ha). Similarly, higher B:C ratio of 1: 2.32 was recorded from demonstration plots as compared to farmer practice plots (1: 2.03).