Pepper disease prevention technology

**Pepper Disease Prevention Technology** Pepper crops are prone to various diseases that can significantly impact yield and quality. Proper prevention and control measures are essential for maintaining healthy plants and maximizing production. Here’s an overview of key diseases affecting peppers and effective strategies for their management. **1. Root Rot (Eggplant Fruit Rot)** Root rot is a common disease that affects pepper seedlings and adult plants. Initially, the stems become infected, leading to wilting and shrinking. The affected parts eventually fall to the ground, making this one of the most critical diseases during the early growth stage. In mature plants, the fruits are commonly impacted, causing fruit rot and the development of white mold in humid conditions. **Control Methods:** To prevent root rot, apply 10 ml of bacterial sterile water mixed with 20–30 kg of water evenly over the seedbeds. After the seedlings have developed, mix 15 kg of water with 1/2 dose of Chunyu No. 1 and spray the plants. This treatment helps prevent various fungal and bacterial infections while strengthening the root system and boosting plant immunity. **2. Stem Blight** Stem blight affects both seedlings and mature plants, primarily targeting the roots, stems, and lateral branches. It causes dark brown elongated spots, and the upper leaves turn dark, while the lower parts remain green. The plant gradually wilts from the bottom up, leading to defoliation and eventual death. The fruits may develop gray-brown or dark brown concentric patterns. **Prevention and Control:** Mix 58% Saifu at a dilution of 400–500 times with 1 part of Chunyu No. 1. This combination effectively prevents disease occurrence and controls its spread. Additionally, it enhances plant immunity, protects flowers and fruits, and increases overall yield. **3. Virus Diseases** Virus diseases are among the most destructive, often reducing yields by 50–60% if they occur early. Severe cases can lead to total crop failure. High temperatures, dry weather, overcrowded fields, and lack of water and nutrients create favorable conditions for virus transmission. Aphids and whiteflies are also major vectors. **Control Methods:** - **Insect Control:** Use fast-knockdown insecticides like Knorr or Xel, applying 15 kg of solution to kill aphids and whiteflies, reducing their population. - **Fertilization and Watering:** During flowering and fruit setting, use 8 kg of fertilizer through drip irrigation to strengthen plant resistance. - **Chemical Protection:** Apply Viral A or Ningnanmycin combined with 1 dose of Chunyu No. 1 to prevent viral infections and boost yield by about 30%. - **Post-Infection Treatment:** If the disease has already occurred, spray a mixture of Chunyu No. 1, Fushengling, and Zinc Sulfate in water to help plants recover quickly. **4. Gray Mold** Gray mold typically begins with infection of the flower parts, leading to brown spots on the top or stem of young fruits. The disease spreads inward from the leaf margins, forming "V"-shaped lesions on the leaves. **Control Methods:** Spray a mixture of 10% Polyzone diluted 1000 times and 1200 times bacterial sterilant. Before or at the early stages of the disease, apply 10 ml of 30% bacterial sterilant plus 10 ml of 50% Phopamarin diluted 1000 times. This method provides excellent control. Adding one capsule of Chunyu No. 1 can improve efficacy by around 30%, while also enhancing plant resistance and immunity. By implementing these integrated disease management practices, farmers can significantly reduce losses and ensure healthier, more productive pepper crops. Regular monitoring, timely intervention, and proper cultural practices are key to long-term success.

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