How to manage tomato early blight?

Early blight in tomato can be managed by using disease free seeds for sowing and by practicing field sanitation. Crop rotation with non-solanaceous crop and optimum irrigation that helps in avoiding stress condition are another method to prevent tomato blight. Seed treatment using thiram at the rate of 2g/kg and 3 sprays with difolatan 0.2 % at fortnightly interval also helps in controlling tomato blight.