Author(s):

Noorulla Haveri, B Anjaneya Reddy and K Thulasiram

Abstract: Late blight, caused by the Phytophthora infestans, is one of the most serious and economically important diseases of tomato. The study was conducted to develop an area specific effective intergraded disease management (IDM) module against the tomato late blight by combining the antagonists and need based fungicidal application. Of the three IDM modules tested in the field conditions during rabi 2013-14 (On Farm Testing - OFT) by ICAR-KVK, Kolar, Karnataka, the module T3 consisting of soil application of antagonists (1 kg each talc formulation of Trichoderma harzianum and Pseudomonas fluorescens enriched in 100 kg well decomposed FYM) prior to transplanting, prophylactic spray with Mancozeb (0.2%) twice at weekly interval before onset of the disease (on onset of disease favorable conditions) followed by curative sprays with Metalaxyl + Mancozeb (0.3%), Fosetyl-Al (0.2%) and Dimethomorph (0.1%) + Polyram (0.2%) at weekly interval at onset of the disease was found most effective in managing the disease. Hence, this module will serve as effective IDM against the tomato late blight under field conditions.

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