With the arrival of early spring, vegetable crops are entering a period of active growth. However, fluctuating temperatures, high humidity, and poor ventilation and light conditions can create an ideal environment for various plant diseases. As a result, it's crucial for growers to enhance disease monitoring and implement effective prevention and control measures. In this article, we will share some practical methods for managing common pepper diseases.
1. **Virus Disease Control**:
- Before seedling, planting, and flowering, apply a 0.1–0.3% zinc sulfate solution.
- Improve cultivation practices by increasing organic fertilizer use and applying potassium and phosphate fertilizers.
- Timely control of aphids is essential to prevent virus transmission.
- For chemical control, use 5% Plant Disease Ling Shui at a 300-fold dilution or 20% Virus A WP diluted 400–500 times.
2. **Blight Prevention**:
- Enhance field management by ensuring proper drainage, appropriate planting density, and balanced fertilization. Remove infected plants promptly.
- Apply 75% chlorothalonil wettable powder at a 600-fold dilution or 64% antivirus WP at 500 times.
3. **Sclerotinia Control**:
- In open fields, avoid waterlogging after rain and maintain well-drained soil. In greenhouses, manage temperature and humidity carefully.
- Use 70% Thiophanate-methyl at 1500 times dilution or 50% Valine WP at 800 times.
4. **Phytophthora Rot Management**:
- Practice crop rotation, ensure good drainage, and remove diseased plants immediately.
- For chemical treatment, use 64% Antivirus M8 wettable powder at 400–500 times or 70% Thiophanate-methyl at 600–800 times.
By combining these cultural and chemical approaches, farmers can significantly reduce the risk of disease outbreaks and improve overall crop health. Regular monitoring and timely intervention are key to successful disease management in pepper cultivation.
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