Grapes are susceptible to diseases such as downy mildew, black pox, anthrax, and white rot from fruit enlargement to maturity. While grasping the management of fertilizer and water in the field, it is imperative to do a good job of prevention and control of various diseases in a timely manner.
Downy mildew: Generally the most serious from June to July. 78% Cobo or 80% essential wettable powder 500-600 times or 27.12% copper noble suspension can be used for prevention before or during the onset, and it can also prevent black-pox, anthrax and white rot. Occurs; 60% extinction WP WP or 600% or 72% urea Mn Zn wettable powder 500 times or 72% WP WP 600 times or 58% radomeril WP 500 times in the later and later stages Other drugs for prevention and treatment.
Blackpox, anthracnose: After the occurrence of the disease, 68.75% of easy-to-preserve moisture 800 to 1000 times or 43% of Halonic suspension 3000 to 5000 can be used.
Times or 12.5% ​​of WP wettable powder 1500 times and other agents for prevention and treatment.
White rot disease: Initially in June, in case of more rain in July and August, the incidence of typhoon increased, especially when the fruit enters the coloring to mature stage, and the degree of sensation increases significantly.
Powdery mildew: High-temperature and dry weather is conducive to the occurrence and epidemic of diseases. It occurs more severely from June to July, and has fewer incidences in the late growth period. Chemical control can be controlled by 43% of Goodrich suspoemulsion 3000-5000 times or 10% of World High Water Dispersible Granule 1500 times.
Botrytis cinerea: If the weather is hot and humid, the fruit coloring to maturity will often lead to severe disease, especially in facilities cultivation. The agent can be used alternately with 50% fluocin suspension 1000 times (prevention) or 40% Shijiale 800-1000 times or 50% agrigeny dispersible granules 1000 times.
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