What are the common pests and diseases of pepper sweet pepper? How to prevent it?
Peppers are affected by various pests and diseases during the planting process, such as viral diseases, epidemics, gray mold, leaf spot, sassafras, etc. How to prevent these diseases? The growers can from the shed, soil, seeds Start with disinfection. The following small series will introduce how to prevent common pests and diseases of pepper. First, the disinfection treatment of the greenhouse After the crops are harvested, 50% of carbendazim (chlorobromoisocyanuric acid) 1000 times solution can be used to spray the ground, walls and columns to spray and spray thoroughly. Seal the greenhouse and kill the fungi, bacteria and viruses remaining in the shed to reduce the harm of the bacteria. Second, seed disinfection treatment Capsicum virus disease is mainly transmitted through seed poisoning as a source of initial infection. Seed soaking with trisodium phosphate solution before sowing. Soak the seeds in clean water for 3-4 hours, then remove the seeds, soak them in 10% trisodium phosphate solution for 30-40 minutes, remove the seeds and wrap them in gauze, rinse them in clean water, and dry them. Sowing, this becomes a virus-free seed. Third, soil disinfection treatment In recent years, the phenomenon of dead peppers has been more serious. According to the investigation, the main diseases caused by dead trees are: epidemic diseases, root rot, bacterial wilt, blight and so on. 1. Seedling period: 50% ethyl phosphine, aluminum manganese zinc plus 30% DT (ethyl phosphine, aluminum manganese zinc for epidemic disease, DT treatment of root rot, bacterial wilt, blight, etc.) for seedbeds, 10 grams per square meter The standard, add 10 times of fine dry soil and mix it on the bed surface, slash into the soil, soak the seeding, and cultivate disease-free seedlings. 2, the planting period: first determine the spacing of the plant spacing, then use 50% ethyl phosphine, aluminum manganese zinc plus 30% DT, according to the standard of 1 kg per thousand plants, add 10 times of fine dry soil and mix well into the hole, Then plant again. As long as the seedbed and the planting disinfection treatment, it can effectively prevent dead trees. Fourth, the main pest control during the growing season 1. Capsicum virus disease mainly includes mosaic virus disease and stripe virus disease. In the early stage of the disease, 300 times of bacteria, 300 times of phytotoxicity, 200 times of inhibitor, 200 times of anti-toxicity, 400 times of virus, 1000 times of virus, 500 times of virus A500 times, and 1000 times of copper sulfate are used. The use of the above 2-3 kinds of compounding of zinc sulphate 1000 times liquid is better. Spray in the afternoon, spray 2-3 times every 5-7 days. 2, pepper blight is mainly manifested in the fruit, appearing water-immersed, dark brown, encountering the rainy and snowy weather, severe cold and high humidity. At the beginning of the disease, 72% DuPont Kelu 500 times solution, 72.2% Plex 800 times solution, 58% toxic manganese zinc 600 times solution can be used for foliar application. It is not suitable for spraying in rainy and snowy weather. It can be fumigated with smoke agents for controlling diseases. 3, capsicum gray mold in the deep winter period of low temperature and high humidity, serious incidence, available 50% speed Keling 1000 times solution, 50% phlegm 1000 times solution, 50% more moldy 1000 times solution, 40 Shi Jiale 1000 times solution, 40% Baco gets 1500 times liquid and other sprays. In the case of rainy and snowy weather, the smoke agent for controlling gray mold can be used for fumigation. 4, pepper bacterial leaf spot can be used 30% DT500 times liquid, 77% can kill 500 times liquid, 30% Wang copper 500 times liquid, 27% copper high 500 times liquid, 20% green milk copper 500 times liquid, 5 % Klebok 600 times solution, 20% leaf green double 500 times solution and other sprays. 5, the tea yellow cockroaches mainly harm the top young leaves, after the damage, the oily color appears on the back of the leaves, the leaves shrink not long. The back of the top blade can be sprayed with 2% avermectin 1000 times solution, sprayed once every 5 days, and sprayed 2-3 times. 6, pepper drop flowers and fruit is mainly caused by low temperature, pay attention to the temperature of the shed after regulation, to maintain the morning shed temperature of 25-28 degrees is conducive to flowering pollination. At 28 degrees or more, ventilation and dehumidification are started, and it is kept at about 15 degrees at night. You can use 5,000 times more liquid spray, and spray 2-3 times in 5-7 days. These are the common pest and disease prevention measures for pepper sweet peppers, and I hope to help you. If you want to know more about agricultural technology, please pay attention to the Hui Nong School!
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