What do summer grapes need to pay attention to?

What do summer grapes need to pay attention to? Please introduce the following points that should be paid attention to in summer grapes: first, prevention of drug damage: the causes of drug damage are improper dispensing method, excessive concentration, spraying herbicide around noon in hot weather, etc., characterized by tender shoots, young leaves in the shape of chicken claws or small paper umbrellas. There is generally no further treatment after the drug, only completely or partially cut off. Second, prevention of fertilizer damage: the cause of fertilizer damage is that the hole application of urea and ammonium bicarbonate is too close to the root or the amount of fertilization is too large. The characteristic is that the middle and upper leaves dry to death first, and can be treated by digging up the cover and watering the fertile soil. Three prevention of water damage: the main cause of water damage is that the grape seedlings did not make a high ridge, long-term rain caused the plant to suffer large water stains for a long time, the lower leaves yellowed and fell off, and the root system rotted to death. Prevention and control measures: raise the ridges of the seedlings or dig trenches to drain water. If the seedlings are small, they can also be dug up and replanted on high ridges. Fourth, drought prevention: the main cause of drought damage is that there is no rain and no water for a long time, the symptom is mainly yellowing and withering of plant leaves, and the rescue method is to water urgently. Five prevention of diseases: summer grapes are most prone to downy mildew and felt disease, can be sprayed with ethyl aluminum, bacilli, etc., in addition, removal, burning and other methods can be used to prevent and control. When the disease is controlled, spray the same amount of Bordeaux solution every 10 days, and continue until the leaves fall. Six pest prevention: pests such as beetles eat leaves at night and should be caught manually. In addition, such as grape tiger moth, mainly take the larvae as harmful leaves, which can be controlled by pesticides. Click to get more grape planting techniques click to get more fruit planting techniques