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Early blight disease control in potato crop

Early blight is a fungal disease that affects potato crops worldwide. The fungus is called Alternaria solani, and its symptoms include browning lesions on the leaves, stems, and fruit of the potato plant. Early blight disease can lead to significant yield losses, crop quality issues, and eventually, significant economic impact for potato producers. As a potato producer, it is important to know how to prevent and control early blight disease. Here are some effective ways to control early blight disease in potato crops.

1. Crop Rotation

Crop rotation practice is an excellent early blight disease control strategy that helps reduce the build-up of fungal spores in the soil. Rotate potato crops with non-related plants like legumes, wheat, and corn to prevent the disease from building up in the soil throughout several seasons. A thorough crop rotation practice involves rotating crops every three years to avoid infection.

2. Proper Plant Nutrition and Crop Management

Healthy plants with proper nutrition are better able to resist diseases like early blight. Healthy potato plants need an adequate supply of nutrients like phosphorus, potassium, magnesium, and calcium. Ensure you maintain the correct pH levels, soil fertility and crop management practice such as timely irrigation, fertilization, weeding and clean operation of the plant.

3. Fungicide Sprays

Early blight disease can be controlled by the use of preventive fungicidal sprays. There are several fungicides available in the market that can help control the early blight fungus. Fungicide sprays work best when used early in the growing season before the disease appears. Always ensure to use appropriate and legal intervals between fungicides applications to avoid resistance build-up, and compliance with regulations in your locality.

4. Resistant Varieties

Potato varieties differ in their resistance to diseases. Selecting a variety that is resistant to early blight disease is an effective way of managing the disease. When it comes to buying resistant varieties, it’s vital to research before making a purchase.

In conclusion, early blight disease can significantly reduce potato crop yields, but it’s preventable with proper measures. Combining crop rotation, proper nutrition, fungicide sprays and planting resistant varieties can help lead to higher yields. Enrolling in courses and seeking advice from experienced professionals for early blight control measures is encouraged. Always remain vigilant and proactive around early blight disease management.

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