(a) Peeling: In early spring, first lay a layer of plastic film under the vine, and then peel off the skin from the vine so that it falls on the film. At the same time, cut off the pests and branches, together with the dander on the film. Outside the park for incineration. (b), deep plowing: combined with the application of grape sprout fertilizer, a deep plowing the whole park, the depth of about 25 cm is appropriate. In this way, bacteria on the surface of the earth can be turned into the ground, thus reducing the incidence of pests and diseases and the chance of infection. (III) Chemical control (1) Pre-emergence control: In the early spring, 7 to 10 days before the germination of the grapes, a complete garden disinfection with 0.3% of sodium pentachlorophenolate plus 5 Baume degrees of sulfur is performed to eliminate The pathogens in the garden reduce the incidence of diseases. (2) Post-emergence control: After the grape sprouts, 0.5 to 1:200-fold Bordeaux mixture is sprayed once every 12 days to effectively control grape powdery mildew, black bean disease, black mold and rot. occur.
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