What medicine does grape spray spike effect best before bagging?

What kind of medicine should be used to spray grapes before bagging? according to what kind of disease your vineyard is generally prone to, and then determine which fungicide is effective, please refer to the following information: 1. Choose the ideal disease control agent ① 10% Shigao: it is a new generation of efficient, broad-spectrum internal absorption fungicides, which can control most fungal diseases. It has good control effect on anthracnose, brown spot, gray mildew, powdery mildew, white rot, black rot and rust, but has no effect on downy mildew caused by oomycetes. Shigao has no pollution to the environment and no residual harm in grape grains. ② 53% gold Redomir manganese zinc: it is a highly active fungicide in the 21st century, which has the dual functions of treatment and protection, and has high biological activity against downy mildew. It can prevent fungal mycelium from growing in plant tissue and prevent spore formation, so it has a good therapeutic effect. It can be rapidly absorbed by the green tissue of the plant within 30 minutes after application, transported to the top through the vascular bundle system, and finally distributed on the leaf surface. The effective period is about 14 days, and the new growth tissue can be equally protected. Jinreidi manganese zinc does not contain teratogenic, mutagenic and carcinogenic substances. ③ 25% amicsida: effective against four types of pathogenic fungi: acystis, basidiomycetes, half-known fungi, and most of the fungi in oomycetes. For the first time, a variety of mixed diseases can be controlled by spraying a single fungicide, and there is no need to use a mixture of several fungicides in order to effectively control multiple diseases. The duration of amiceda is long, and the interval between application is about 15 days. It not only reduces the number of times of application, but also has three effects of prevention, treatment and eradication. Amisida and its metabolites have almost no residue in food, no neurotoxicity, no teratogenicity, no carcinogenicity, and no lasting residue in the environment. Amisida can be perfectly integrated into the comprehensive disease management of grape, effectively control a variety of fungal diseases, and lay the foundation for high yield and high quality. 2. A new scheme for prevention and control of grape diseases ① grape was treated with l:l:l20 Bordeaux solution protective fungicide after leaf expansion to prevent the infection and growth of pathogens. In the preparation of Bordeaux liquid, the copper sulfate solution should be slowly poured into the dilute lime milk and stirred, and the lime milk should not be poured into the copper sulfate solution. From inflorescence appearance to flowering stage, ② was used to control downy mildew with 53% gold and manganese zinc, and white rot, powdery mildew and black rot with 10% Shigao 1500 times solution. From mid-flowering to fruit expansion, ③ was sprayed with 25% Amisida suspension l500 times for 3 times with an interval of 15 days, which can prevent, treat and eradicate fungal diseases on grapes, and achieve the control of mixed diseases by spraying a fungicide.