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Control of Early Blight in Tomato crop

Early blight is a common fungal disease that affects the tomato crop. It is caused by the fungus Alternaria solani and can cause significant yield losses in tomato plants if not managed properly. Early blight can also affect other solanaceous crops like potato and eggplant. In this article, we’ll discuss the various control measures that can be taken to manage early blight in tomato crop.

1. Crop rotation: Tomato plants should not be grown in the same area where they were grown the previous year or where solanaceous crops were grown. This helps to reduce the build-up of fungal spores in the soil.

2. Use disease-free seeds and seedlings: It is important to ensure that the seeds and seedlings used for planting are disease-free. This can be achieved by sourcing them from reliable sources.

3. Proper spacing: Ensure that there is adequate spacing between tomato plants to allow air circulation and reduce humidity levels. Crowded plants provide favorable conditions for early blight development.

4. Pruning: Prune the tomato plants properly to allow for better airflow, which reduces humidity. This helps to reduce the spread of early blight from infected leaves to healthy ones.

5. Fungicide application: Fungicides can be applied to manage early blight. Fungicides that contain chlorothalonil, mancozeb, or copper are recommended. It is important to follow the instructions on the label and apply the fungicides at the recommended intervals.

6. Mulching: Mulching helps to reduce soil splashing, which can spread spores of early blight. Use organic mulches like straw or bark to cover the soil surface.

7. Sanitation: Remove and destroy infected plants and leaves immediately to prevent the spread of the disease. Do not compost them, as the spores can survive and infect other plants.

In conclusion, early blight can be managed through a combination of cultural and chemical control measures. Crop rotation, use of disease-free seeds and seedlings, proper spacing, pruning, fungicide application, mulching, and sanitation are effective ways of controlling early blight in tomato plants. By following these measures, you can protect your tomato crop from early blight and achieve optimum yields.

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