How can we reduce the harm of pepper disease to pepper? In fact, to prevent and cure pepper disease, we must adhere to the principle of "mainly agricultural control, supplemented by chemical control", which link can not be sloppy. First, common pepper disease agricultural control methods Scientific selection If you want a bumper harvest, the seeds will go first, so when farmers are planting peppers, they must first get better on the seeds and choose good varieties that are resistant to disease. For example, in the ability to resist viral diseases, early-maturing and spicy-flavored varieties are more resistant to disease than late-maturing and non-spicy-flavored varieties. For plots with high virus disease, you can choose Zhongjiao No. 2 and Zhongjiao No. 3, which are more resistant to disease; in the ability to resist anthracnose, the varieties with strong spicy taste are more resistant to disease, and the incidence of anthracnose is higher. For the plot, you can choose Changfeng, Duanjiao No.1, Tiepiqing and other varieties. 2. Seed treatment The variety is selected and seed treatment is also very important. If a pathogen is present on the seed, it will cause the disease to occur. For example, the disease of pepper seedlings is often caused by the pathogens of the seeds themselves. Therefore, in order to kill the pathogens on the epidermis of the pepper seeds, the virus carried on the seeds is passivated, preferably before seed soaking and germination. deal with. Commonly used seed disinfection methods include warm soup soaking and pharmaceutical disinfection. Key subtitles warm soup soaking The so-called warm soup soaking is the purpose of sterilization and disinfection by hot water soaking. The specific method is to first pour hot water of 60 degrees Celsius into the container, the amount of hot water should be controlled about 3 times of the amount of seeds, then slowly pour the seeds into the water, stir while pouring the seeds, wait for the temperature to be about When it is lowered to 25 to 30 degrees Celsius, stop stirring and soak for 12 to 24 hours. This method has a good effect on the prevention of anthrax and scab. 3. Drug disinfection The second method is to sterilize the drug. Since the pathogen causing the pepper disease is different, you can select the drug in a targeted manner when the seed is disinfected. If your pepper seed may have a viral disease, you can use a zinc sulfate solution with a concentration of 0.2% to 0.4%, soak it for 12 hours at 20 to 25 degrees Celsius, remove it with water, and clean it. Certain inhibition. To prevent capsicum anthracnose and scab, you can soak the seeds in water for 10 to 12 minutes, then soak them in 1% copper sulfate for 5 minutes, remove them and wash them with water. For diseases such as pepper blight and anthracnose, it can be washed with 1% sodium hypochlorite for 5 to 10 minutes and then washed with water. 4. Avoid continuous cropping Continuous cropping is an important cause of the occurrence of pepper disease. Therefore, it is necessary to avoid crop rotation with Solanaceae and Cruciferous crops at the time of sowing, and implement a two-year rotation with beans or rice crops. Therefore, planting peppers The plot should be carried out for more than 2 years with non-solanaceae and cruciferous vegetables, which can reduce the incidence of viral diseases, soft rot, epidemics, scab and anthrax. Secondly, pay attention to the reasonable planting density when planting. If the planting density is too dense, the ventilation and light transmission conditions of the pepper field are poor, which may cause the occurrence of anthracnose, epidemic disease, scab, soft rot and other diseases. Then the leaves do not cover each other well, and the fruit is directly exposed to sunlight, which is easy to cause sunburn. When planting peppers, the planting density should be determined according to the variety of peppers. For example, choose Spicy Red No. 9 and the density is about 4,000 per mu; Spicy Duhong No. 3 is about 3,800 per acre. 5. Strengthen field management In the whole process of pepper growth, in order to reduce the occurrence of pepper disease, it is necessary to strengthen the field management work. Pepper is a water-loving crop, but the humidity is too large, and it often leads to anthracnose, epidemic disease, scab, soft rot and blight. Therefore, it is necessary to plant small peppers in the open field or to water the ridges. Water flooding, in case of rainy days, when the water is accumulated in the field, we must pay attention to timely drainage. For greenhouse-grown peppers, it is necessary to avoid flooding and to enhance ventilation and reduce the humidity in the greenhouse so that the relative humidity of the greenhouse air is between 60% and 80%. For farmers who grow peppers in the greenhouse, they should also pay attention to controlling the temperature inside the greenhouse. The temperature in the greenhouse is controlled at 26 to 28 degrees Celsius during the daytime, and the normal growth of the pepper can be effectively guaranteed at 16 to 20 degrees Celsius at night. In the process of pepper growth, the amount of fertilizer needed is large. However, many farmers’ friends have applied nitrogen fertilizer in order to promote plant growth, but neglected the application of phosphorus, potassium, zinc and boron fertilizers, which aggravated the pepper virus disease to a certain extent. The occurrence of diseases such as pepper wilt and disease. Therefore, in the process of fertilization, it is necessary to properly apply NPK fertilizer on the basis of applying the base fertilizer, and pay attention to the appropriate amount of trace elements such as zinc and boron. Here to remind everyone, in the process of field farming operations, we should try to avoid mechanical damage to the roots and fruits of pepper plants, and prevent the invasion of pathogens causing viral diseases, diseases and scabs, leading to disease. In addition, if the diseased plants are found in the pepper field, they should be removed in time and burned or buried to prevent the spread of the disease. Second, common pepper disease drug prevention and treatment methods Doing a good job in field management can't be done once and for all. For the disease of pepper, it is necessary to carry out chemical control in a timely manner. The main control of pesticides is against diseases such as pepper virus disease, soft rot and anthracnose. First of all, talk about the chemical control of pepper virus disease, prevention and treatment of pepper virus disease in the early stage of the disease, with 20% hydrochloric acid morpholinium. Copper wettable powder 400-500 times liquid spray, spray once every 7 days, even spray 2 to 3 times, it can play a better inhibitory effect on viral diseases. Since the aphids are easy to spread the pepper virus disease during the process of sucking the juice of the plant, it is necessary to eliminate the aphids when controlling the virus diseases. The control of aphids can be carried out in a timely manner by using 2000% to 3000 times solution of 10% imidacloprid EC or 2000 to 3000 times of 20% acetamiprid wettable powder. If soft rot and scab disease occur in the field of pepper, 72% agricultural streptomycin WP 2000 times solution can be used at the beginning of the disease, once every 7 to 10 days, once or twice, for planting in open field. The plot can be sprayed and prevented in the early stage of the disease. When the agent is used to control anthracnose, 50% prochloraz WP 500 times solution can be used. It can be sprayed once every 7 to 10 days in the early stage of the disease, and even if it is sprayed 2 to 3 times, it can play a better control effect. For the prevention and treatment of diseases, 70% of metalaxyl manganese-zinc wettable powder 500 times solution can be used. It can be sprayed once every 5-7 days in the early stage of the disease, and continuous spraying for 2-3 times can enhance the plant's resistance. Performance, play a better control effect. Through today's introduction, you must have a certain understanding of the common diseases of peppers and their prevention and treatment methods. In fact, if you want to reduce the harm of diseases, as long as you can do everything from pepper selection to harvesting, you will not relax. Early detection and early prevention and treatment of pepper disease will definitely reduce the harm of disease to pepper. Finally, we wish you a happy day like a red pepper. Retractable Cable Reel,Portable Water Hose Reel,Retractable Water Hose Reel,Retractable Electrical Cable Reel NINGBO QIKAI ENVIRONMENTAL TECHNOLOGY CO.,LTD , https://www.water-hose-reel.com
Common methods for prevention and treatment of pepper diseases
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