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Color pepper is a kind of pepper, the color of pepper after maturity is divided into red, yellow, green, purple and other colors. For example, when the pepper is immature, it will turn green, and turn red and purple red after ripening. Some peppers harvest green fruits for the purpose, such as some kinds of green pepper and other pepper varieties. Others such as 7 color pepper, 5 color pepper and other mature have colorful colors, which can be used as ornamental and edible. No matter which kind of pepper is planted, eggplant and fruit vegetables are often planted again. When planted in the soil of melon growing all year round, pepper will be susceptible to various diseases, for example, the pepper epidemic is one of them. With the popularity of pepper planting, the epidemic of pepper is also a serious disease in recent years. What do we need to do to achieve the ideal prevention and control effect?

The disease of Capsicum can occur in the seedling stage of pepper. After the chilli is planted, it will be until the result of chilli ripens. Affected by rain and temperature, the phenomenon of damage will also occur. According to the relevant data, the pathogen causing the pepper epidemic is Phytophthora fungi, which can spread with irrigation water and wind and rain. When the pepper is harvested, the pathogen will be attached to the residual scattered in the field, and the more winter lasts until the second year, the newly infected plants will be re infected after the temperature is suitable. In the process of actual cultivation of pepper, pay attention to the specific situation of pepper epidemic. You will find the fastest development time of pepper epidemic. Generally, after the rainstorm in summer, there is water in the field, soaking pepper trees for more than 24 hours, which is serious.

After the blight of pepper in seedling stage, the stem base of the seedlings appeared dark green soft rot, and the disease spots were water soaked, easy to break and fall back. In the early stage of the disease, the leaves wilted in the daytime under the sun, and recovered at night. After a period of time, the whole plant died.

The prevention and control methods of Capsicum blight, 1. Pay attention to seedling raising. Choose the soil of seedling bed without planting eggplant vegetables and melon soil. After the seeds of Capsicum are sown, spray the whole seedling bed with 40% aluminum phosphate 600 times liquid, and then cover it with a layer of fine damp soil, and spray it with aluminum ethophosphate solution. Or directly choose seed coating agent to coat, which can reduce the occurrence of seedling diseases.

2. Prevent rain and flood, plant chilli in the field where the water can be drained and the dry can be poured. After the rain, there is no water in the field.

3. Chemical control, before summer, the whole plant of pepper can be sprayed with 400 times liquid 64% anti-toxic alum + imipramine 1000 times liquid + brassinolide. Or 600 times liquid, 25% of the ruitoxicin + 2116 days. This can improve the comprehensive resistance of Capsicum.

4. Avoid replanting and pepper replaying. It is not only refers to the stubble with pepper, including eggplant, melon and field, it is not suitable to continue to plant pepper.

Phytophthora Blight when planting color pepper?