Common pests and diseases of summer vegetables and their control methods
We all know that summer is the most serious pest and disease, summer is hot and rainy, and the climatic conditions of high temperature, high humidity and rain are good for vegetable pests and diseases. Many crops are affected by pests and diseases, especially crops with a large yield and demand, such as vegetables, cabbage and lettuce. The main pests and diseases are Liriomyza sativae, cucurbita, pea pods, melon flies, whiteflies, Spodoptera litura, beet armyworm, downy mildew, viral diseases, powdery mildew and the like. In addition, yellow bells, Plutella xylostella, aphids, soft rot, bacterial wilt, anthracnose, blight, blight, and rust also occur to varying degrees. So how do you prevent these pests and diseases? 1. It should be prevented during the cultivation period, and the humidity of the seedbed during the seedling period should be strictly controlled to prevent the growth of many germs. It is recommended that the seedbed of crops be set up in a better place for cultivation, and some preparations before planting should be done. It is necessary to kill the germs in the total capital. If some seedlings that cannot grow out are found, it must be timely. Clean up, otherwise some pathogens may occur. 2, many crops, such as lettuce, cabbage, etc., they will appear a softening phenomenon in the late growth stage, it is a huge hazard for cabbage or lettuce, and will cause very large losses to the farmers, drugs also It is very difficult to control this phenomenon, and prevention and control work is especially important. First of all, it is necessary to choose the varieties to be planted. It is necessary to fertilize and irrigate scientifically and safely. Some chemical houses are also very important. It is also necessary to add some pesticides necessary for agricultural production. 3. In the summer, when there are many aphids, they are very sensitive to the leaves and have been attached to them. Therefore, when the temperature and humidity are high in summer, it may be very beneficial for these pests. Therefore, we must pay attention to it, especially the vegetable leaves. It is necessary to choose some professional insecticides to spray, and it is very important to prevent the infestation of these insects, but it must not cause the residue of the drugs, resulting in the quality of the whole dish. The drop is very bad. The above are some of the diseases and insect pests and prevention methods of summer vegetables summarized by Xiaobian. Farmers should do preventive work. Once the pest and disease technology is found, the normal growth and quality of vegetable crops are guaranteed. For wonderful pictures and popular comments on vegetable pests and diseases, you may be interested in the following recommended contents of Hui Nong. Welcome to read.
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