(1) Pollution-free prevention and control: At the initial stage of the disease, dilute the spray with relevant bactericidal pesticides, and spray 1 time every 5-7 days, depending on the condition. When the disease is serious, add 15ml garlic oil and 30 kg water, and spray the whole plant evenly, every 3 days 1 time, 2-3 times in total.

(2) Soil Disinfection For orchards with serious diseases, 50% thiram powder, 1 part sulfur powder and 1 part calcium carbonate should be evenly mixed and sprinkled on the ground of vineyards, with an area of1~ 2kg per mu, or sprayed with sodium pentachlorophenol, thiram arsenic and triamcinolone acetonide 200 times, which can alleviate the diseases.

(3) During the growth period, Bordeaux mixture and Cobo protective agent were mainly used to prevent flowering, and then they were sprayed every 7- 15 days according to the illness and weather conditions. The first spraying should be controlled in the early stage of the disease, generally starting from mid-June, and then spraying once every 7 ~ 10 days, and spraying continuously for 3 ~ 5 times until 15 ~ 20 days before fruit harvesting. When spraying, be careful and considerate, and focus on protecting your ears. It rains as follows after spraying, and it should be sprayed in time after the rain. Broad-spectrum agents are 600 ~ 800 times of 50% wettable powder, 700 times of 70% wettable powder, 50% wettable powder 1500 times, etc. [4] The latest drug is 800- 1200 times of white control solution; 30% kresoxim-methyl 1200 times solution and 75% chlorothalonil 500-600 times solution; 56% azoxystrobin chlorothalonil 1000 times solution, 70% mancozeb and 64% antivirus alum 700 times solution. It is necessary to start spraying the medicine for the first time around 1 week before the onset of the disease, and then spray it every 10 ~ 15 days, and prevent it for 3 ~ 4 times in rainy season.