Vol. 7, Issue 4 (2019)
Management of buckeye rot of tomato caused by Phytophthora nicotianae var. parasitica under mid-hill conditions of Himachal Pradesh
Author(s): Gurpreet Kaur and DK Banyal
Abstract: Buckeye rot of tomato caused by Phytophthora nicotianae var. parasitica (Dastur) Waterhouse is one of the most serious disease of tomato throughout the world and causes high yield losses. For the management of the disease different botanicals, biocontrol agents and fungicides were evaluated against the pathogen under in vitro. The fungicides were also evaluated under field conditions during 2017 and 2018. Aqueous extract of Melia azedarach @ 20% gave maximum growth inhibition (70.00%) of P. nicotianae var. parasitica under in vitro. Among 8 fungicides evaluated in vitro, iprovalicarb 5.5%+ propineb 61.25% WP (Melody Duo 66.75 WP) at 100 µg/ml gave 100 per cent mycelial growth inhibition. Evaluation of fungicides under field conditions showed that three foliar application at 10 days interval of iprovalicarb 5.5%+ propineb 61.25% WP (@ 0.25%) resulted in maximum (54.72%) disease control with 81.51 per cent increase in yield over check.
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How to cite this article:
Gurpreet Kaur, DK Banyal. Management of buckeye rot of tomato caused by Phytophthora nicotianae var. parasitica under mid-hill conditions of Himachal Pradesh. Int J Chem Stud 2019;7(4):1782-1786.
