First, to prevent the main, timely spraying. For drugs with a residual period of 17 to 21 days, they are usually sprayed every 15 days. If the rainfall in the middle, depending on the amount of rain, as appropriate, shorten the next spraying days. If heavy rain falls after spraying, it will be sprayed again after sunny weather. If the adjacent two drugs are alkaline or acidic, they must pay strict attention to the interval to prevent the two drugs acid and alkali neutralization.
Second, see the disease early, timely treatment. Grapes are most susceptible to disease when there is heavy rain, high temperature and humidity. For this reason, it is necessary to observe the vineyard once a day. See the disease at the beginning of the symptomatic spraying. For the control of downy mildew can be sprayed with a new high-fat film 800 times with 70% of the Kepo 600 times 80% of the 300 times of aluminum foliar spray
Third, the main new high-fat membrane, adapted to other drugs. In the process of grape disease prevention, new high-fat membranes should be used, and other drugs should be adapted to prevent disease. It can spray a new high fat film + strong fruit turmeric, increase fruit pedicle, and increase the amount of nutrient delivery before flowering, young fruit, and fruit enlargement. Anti-dropping, fruit drop, cracked fruit, stale fruit, malformed fruit, make the fruit beautiful, beautiful fruit, and good taste. After the grapes are harvested, a 500-fold solution of new high-fat lipid membranes restores plant physiology and promotes plant growth. If white rot, anthrax and other diseases occur in the middle, the medicine can be sprayed symptomatically.
5. Releasing soil in time will increase soil permeability. In the rainy season, especially after heavy rains and heavy rains, the vineyard will be ground surface and the soil will be poorly ventilated, which will result in the lack of oxygen in the root system of the grape, weakened tree vigor and reduced resistance, making it susceptible to disease. Therefore, during the rainy season, we must seize the gap time without rain. We must cultivate the vineyards and spray new high-fat membranes in time to prevent soil compaction to increase the permeability of the soil, isolate the pests and diseases and suffocate them.
Sixth, clear the auxiliary tip to facilitate ventilation. In the rainy season, the grapes are most prone to longevity and the incidence of shoots is very high. To promptly spray Huanuo No. 3 to make the plant nutrient backflow, suppress the main shoots to grow mad, and do not need artificial summit buds and hormones to kill shoots. This can inhibit the plant's main shoots, axillary buds, and neighboring madness, and transform the growth nutrition into reproductive nutrition. Promote flower bud differentiation and improve the quality of pollen fertilization. More flowering, more fruit set, prevent fruit drop, promote development.
7. Clean the garden in a timely manner to curb the spread of the disease. The environment with high temperature and humidity is conducive to the spread of germs. Therefore, it is necessary to clear the garden at any time and remove the diseased diseased leaves, diseased branches and diseased fruits from the garden, and bury or burn them. At the same time, the whole park sprayed tree maintenance generals for sterilization.
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