Pepper is easy to die in high temperature. What remedial measures are there?

Select middle and late maturing varieties with heat resistance, disease resistance and long growth period. Generally speaking, varieties with small fruits are heat-resistant than varieties with large fruits, and varieties with small disease-resistant leaves are heat-resistant than varieties with large leaves, so it is best to choose red pepper, real pepper or pepper varieties with small leaves in summer. Seeds were soaked in warm water at 55℃ 15 ~ 20 minutes, and soaked in warm water for 6 ~ 8 hours. After absorbing water, wrap the water with a wet cloth. After 80% seeds are exposed, sowing is effective to kill bacteria. Avoid continuous cropping with melon and eggplant and rotate with rice, Cruciferae and Leguminosae for 2-3 years. If the previous crop is not a field, soak it with a mechanical rake for about a month to kill the germs in the field. When operating the land, spraying 25 ~ 30 kilograms of sugar-free lime has a certain effect on alleviating diseases and preventing dead seedlings.

Rational and close planting in highland, after rational use of water, timely discharge the soaked loose soil to prevent excessive humidity, and add phosphorus and potassium fertilizer on the basis of erection fertilizer to facilitate the application of nitrogen fertilizer and improve the disease resistance of plants. Spreading 2 ~ 5 cm thick straw on the surface of pepper after flowering can prevent rain and keep moisture, improve soil physical and chemical properties, improve soil permeability, promote microbial activities, increase soil available nutrients, promote root growth of pepper plants, make plants bear fruit and reduce death. Actively promote drip irrigation, sprinkler irrigation and osmotic irrigation to reduce the humidity of soil and air, dry the soil and improve the disease resistance of pepper roots. When the weather is hot, the pepper is flooded, the soil moisture is saturated, the permeability is reduced, the root of pepper suffocates and dies, and the plant susceptibility of plant aging bacteria spread through running water increases.

In the hot and humid season, 50% nail polish, 700 times of zinc wet powder solution or 700 times of 50% nail polish and copper wet powder solution should be injected in time. 25% methyl support wet powder 1000 times solution for preventing stent wilt. Spraying 200-300 times of 5% bacterial toxin or amino oligosaccharide to prevent viral diseases, spraying the above pesticides about 1 time every 7 days for 3-4 times in a row, and paying attention to the alternate use of drugs. In the empty autumn field, plants wither and leaves turn green. Observing the plants, there are no signs on them, but after a few days, the plants will wither and die. (William Shakespeare Hamlet I hope so) This phenomenon is actually caused by pepper bacterial wilt.

Ralstonia solanacearum likes high temperature and humidity. Generally, when the field water temperature is about 25 and the soil water content exceeds 25%, bacterial wilt is easy to occur. Especially after heavy rain or rainstorm, it suddenly becomes clear, the temperature rises and the humidity rises, which is more likely to cause the epidemic of this disease. In addition, peppers can be tobacco, eggplant and vegetables. Or flood, soil moisture; In the case of many injuries to plants, poverty and disease are also very serious. If any medicine is found at the scene, it should be pulled out immediately, and the bottle blood should be disinfected with 800 times solution of 3% Mesozoic bacteria wetting powder or 20% lime water. At the same time, before the war, 90% neomycin soluble powder was 4000 times, or 33.5% quinoline copper suspension concentrate was 800 times and 72% agricultural high-efficiency streptomycin soluble powder was 3000 times, or 32.5% benzodiazepine suspension concentrate 1500 times and 72% agricultural high-efficiency streptomycin was 3000 times.