Efficacy of Fungicides and Bioagents against Early Blight of Tomato caused by Alternaria solani

Tomato (Lycopersicon esculentum Mill.), is one of the most popular fruit vegetable crop grown throughout the world. However, during recent years the crop has severely been affected by the early blight of tomato (Alternaria solani), causing about 48-80 per cent fruit yield losses. Though, the disease can be managed with various conventional fungicides and bio-agents under laboratory condition but new generation chemical molecules needs to be assessed for their efficacy against the disease. Three Systemic fungicides (@1000 ppm), four non-systemic fungicides (1500 ppm) and three combi (1500 ppm) fungicides were evaluated. Similarly six fungal antagonists and two bacterial antagonist were evaluated against M. phaseolina by poison food technique and duel culture method respectively. Per cent Inhibition was ranged from 50.81 to 94.44 and bioagent tested per cent inhibition ranged from 44.14 to 74.92.