Vol. 11, Issue 7 (2022)

Author(s):
Ram Babu Sharma, Sunil Zacharia and MB Thakur

Abstract:
The effectiveness of bio agent (Trichoderma harzianum @ 5g/kg seed), plant extract (Leaf extract of Datura @15%), fungicides (Contaf Plus @0.1%, Indofil M-45 @0.25%, Saaf @0.25) alone and their different combinations were assessed in the field during Rabi, 2020-21 and Rabi, 2021-22 for the management of early blight of tomato caused by Alternaria solani. The pooled data reveal that the lowest percent disease intensity (13.94%) and highest fruit yield (17.31 t/ha) was recorded when Trichoderma harzianum @5g/kg seed used as seed treatment + one foliar spray with Datura leaf extract @15% + two foliar sprays with Indofil M-45 @ 0.25 % followed by three foliar sprays of Contaf Plus @ 0.1% and T. harzianum @ 5g /kg seed used as seed treatment + one foliar spray with Datura leaf extract @15% + two foliar sprays with Saaf@ 0.25% recorded 16.46, 17.81 percent disease intensity and fruit yield 16.84, 16.63 t/ha respectively.