Common diseases in pepper cultivation include bacterial wilt and powdery mildew, and pests include pepper yellow mite and pepper whitefly. To deal with pests and diseases, it is necessary to choose disease-resistant varieties, deeply plow the soil, and sterilize Disinfection, heat preservation and moisture preservation. Pepper Zhuangdi Ling should be sprayed timely during each growth period of peppers to improve the pepper's resistance to external pathogens. Check in time, and if any diseased plants are found, pull them out and burn them immediately, while protecting the natural enemies of pests and diseases.

What are the common diseases in pepper planting? What are the characteristics of bacterial wilt: When the plant is infected, the top leaves of the diseased plant will wither during the day, and will recover on cloudy days or in the morning and evening. After 2-3 days, the leaves will remain green but the whole plant will wither. Cut the diseased stem, and the tube will turn brown. Soak the cut in water, and white turbid bacterial fluid will flow out from the cut.

Incidence pattern: Pepper bacterial wilt is a bacterial disease that becomes serious when the soil temperature reaches 20℃-25℃, when the air temperature reaches 30℃-37℃, and when the soil moisture content reaches above 25℃ . When it rains and clears suddenly, the temperature rises rapidly, the humidity is high, and the amount of transpiration is high, the pathogenic activity is strong, the number of diseased plants increases, and the damage is serious. The pathogen thrives best when the soil pH is 6.6. Characteristics of powdery mildew incidence: Powdery mildew on pepper is caused by the Ascomycota fungus Lepidoptera whiplash. Leaves, old leaves, and young leaves can all be infected. It spreads mainly by air currents in the field. The disease is more likely to be prevalent under slightly dry conditions. Small chlorotic yellow spots initially appear on the front of the diseased leaves, and then expand into chlorotic yellow mottled edges with inconspicuous edges. White powdery substance is produced on the back of the diseased part, and in severe cases, the diseased spots are densely packed, causing the whole leaf to turn yellow, and a large number of leaves to fall off to form light stalks, seriously affecting the yield and quality.

What are the main pests of peppers in cultivated peppers? The yellow mites on peppers damage the leaves and flower buds of peppers, causing the peppers to fail to bloom and become deformed until the peppers die. Tea yellow mites like to feed on the young parts of plants. Symptoms of damage appear at the growing points at the top, but are asymptomatic in the middle and lower parts. In addition to causing damage to the top, viral diseases sometimes show symptoms on the entire plant. Pepper whitefly Greenhouse whitefly is a very common pest in protected cultivation and can damage almost all vegetables. Whitefly pests in pepper greenhouses will cause pepper leaves to gradually wilt until they die, contaminating pepper leaves and fruits, and affecting the growth of peppers.

Capsicum pest control technology and management methods: Select disease-resistant varieties for bacterial wilt control; adjust soil pH, apply 50-100 kg of lime per mu; implement crop rotation to prevent repeated or continuous cropping; timely inspection to detect diseased plants Pull it out immediately and burn it; sprinkle lime powder in the hole; in the early stage of the disease, use a pack of 100-200PPM agricultural streptomycin or kasugamycin mixed with 150 jin of water to wet the soil, control it three times in a row, and irrigate the roots once every 10-15 days , 2-3 times in a row. To prevent and control powdery mildew, when planting, select varieties with better disease resistance and use new high-fat film to dress the seeds; before planting, dig the soil deeply, spray 800 times of new high-fat film to sterilize and maintain heat and moisture; spray peppers to strengthen the pepper in time during each growth period. Diling can enhance the nutrient transport in the body and improve the resistance of peppers to external pathogens. In the early stage of the disease, spraying polyoxygen 1000 times solution plus Dupont Fuxing 3000 times solution and applying a new high-lipid film has a particularly good effect. Chili tea yellow mite prevention and control Strengthen the pesticide mite killing work in greenhouses in winter and spring. Protect natural enemies and avoid the use of highly effective and highly toxic pesticides that are highly lethal to natural enemies to protect natural enemies and maintain ecological balance. Artificially bred phytoseiid mites can be released into the fields to effectively control the damage caused by tea yellow mites. Whitefly control in pepper Yellow has a strong trapping effect on whitefly adults. Set up yellow board fiberboard or cardboard in the greenhouse, paint it orange, and then apply a layer of oil. 32-34 pieces per acre will have a significant effect on trapping adults. . The yellow board is set between the rows and is at the same level as the height of the plants. The millet oil should be reapplied every 7-10 days to prevent oil droplets from causing burns on the crops. As one of the comprehensive prevention measures, this method can be used in coordination with the release of Aphids and wasps.