How to prevent pepper sunburn
Capsicum sunburn is a physiological disease caused by strong light. As the temperature rises, pepper is prone to sunburn. After the strong light directly irradiates the fruit, white round or near-round small spots appear in the early stage of the disease, the surface of the diseased part becomes thin, and the tissue is necrotic and hard; the later saprophytic bacteria infects and grows gray-black mold layer and rots.
The pepper is planted too thin or improperly managed, so that the fruit of the pepper is exposed to the sun, causing local overheating of the fruit, or although the fruit is hidden under the leaf, the scattered light converges to the fruit, causing local overheating of the fruit, and causing sunburn In the morning, there are a lot of dew on the fruit. After the sun is shining, the dew is concentrated and absorbs heat, causing the fruit to burn. Generally, the leaves are not well shaded, the soil is dehydrated or the weather is dry and hot, and the rain is fine after the rain can cause sunburn. disease.
Prevention:
1. Implement north-south cultivation so that the fruit surface is less exposed to direct sunlight.
2. It is necessary to timely water, especially after the results, watering in time to prevent high temperature damage, watering should be carried out at 9 to 12.
3. Use anti-inflammation varieties.
4. Reasonably close planting, maintaining a certain size of leaf area, so that the leaves are shaded by the fruit, or intercropped with high-crop crops to avoid exposure of the fruit to the sun.
5. Strengthen the management of fertilizer and water, make the branches and leaves flourish, strong and not too prosperous, and grow steadily. Top dressing, spraying blue calcium 600-800 times, once every 5 to 10 days, even spraying 2 to 3 times, can enhance the anti-Japanese burning ability of the fruit.
6. Remove the diseased fruit early to prevent bacterial infection;
7. Strengthen the prevention and control of pests and diseases, timely prevent and cure the "three falling" disease, prevent early defoliation of plants, and use leaves to protect fruits to reduce the occurrence of sunburn
8. Cover with sunshade to avoid direct sunlight
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