High temperature in summer, how to prevent pumpkin leaves from scalding?

Summer is coming, and the melons in the nature reserve must be covered when there is sunshine after rainy weather. It is necessary to distinguish high temperature and high humidity from similar diseases: we should also pay attention to distinguish the occurrence of diseases in children's daily management, because the symptoms of Prague pumpkin, low-altitude dew and powdery dew are similar. Secondly, it is characterized by facing the west of the sun and then gradually opening up. Pay attention to shadows and cooling first. In high temperature climate, a sunshade net should be erected on the terrain in the shed in time to reduce the light intensity in the shed. Please note that the sunshade net cannot be covered all day, so as to avoid insufficient light in the shed and excessive temperature burning the pumpkin growing point.

Drugs such as chlorothalonil can also be used for prevention. Use disinfectant and other drugs for spray control one week before onset. These are the injuries caused by the high temperature of pumpkin moss. This situation mainly occurs in the excessive outer layer of pumpkin. Pumpkin lining is mainly available nitrogen fertilizer, and nitrogen, phosphorus and potassium are reasonably matched. After several days of persecution and exposure in rainy days, if you burn watermelon puree, you can spray foliar fertilizer, such as brassinolide, to promote growth.

Water supply and fertilization can be sprayed with fungicides. Spraying 0.02ppm brassinolide and foliar fertilizer, USAR brassinolide can improve the stress resistance of plants, and foliar fertilizer can quickly supplement the urgently needed nutrients of plants. Folding fertilizer can be used as an option. Abpkin powdery mildew mainly harms the leaves of plants. This disease is most likely to occur in hot and rainy summer. For this kind of mildew powder, the most important thing is to correctly identify the symptoms, find the cause, and remove serious diseases in time.

Better transplant it again. After the injured seedlings return to growth, they may be earlier than melons, and the back of the sheets is covered with dense insects. It was found that the temperature was high and it rained before. In the environment of high temperature and high humidity, pumpkin aphid occurs, which has a great influence on the growth of pumpkin. How to effectively prevent and control the high temperature and humidity in summer makes the pumpkin epidemic more serious, resulting in poor quality and low yield, which causes serious economic losses to melon producers. How to avoid and control it scientifically and permanently?