Grapevine blight, also known as axillary disease, is one of the important diseases that harm grape fruit. Prevention and treatment methods: 　　 (1) Clean the countryside. In the autumn and winter, we must thoroughly carry out the work of clearing the garden, collect the diseased fruit, the diseased ear, the diseased leaves and the peeled old skin, and burn it to reduce the source of the disease. 　　 (2) Strengthen management. Timely pruning, improve ventilation and light transmission conditions, increase application of organic fertilizer, apply more phosphorus and potassium fertilizer, and enhance plant disease resistance. The trimmed mouth is closed with a callus antiseptic film. During the growing season, pay attention to drainage after rain and reduce the incidence. ( 3 ) Chemical control. Before flowering, in the young fruit stage, and during the fruit expansion period, spray the fruit and fruit to increase the nutrient supply, strengthen the flowers and strengthen the fruit, and improve the disease resistance. Grape start falling jet 1: 0.7: 200 times Bordeaux mixture + new lipid membrane 800 times, or 50% sulfur suspending thiophanate-methyl + new lipid membrane 800 times 800 times, can destroy 50% Dan? Wettable powder 800 times liquid + new high fat film 800 times liquid, 75% Dako Ning wettable powder 700 times liquid + new high fat film 800 times liquid. The incidence of serious orchard, flower can be bagged after disease prevention, a second new lipid membrane should be sprayed before bagging 500 times.
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