There are many types of grape germicides on the market, but they can be roughly divided into two categories, one is a protective fungicide, and the other is a systemic fungicide. In the prevention and control of pests and diseases in the vineyard, we are supplemented by chemical control, mainly agricultural and biological control. So, what are the effective grape germicides?
First, let's talk about protective fungicides. Here are more effective sulfur preparations, copper preparations and EBDC fungicides.
The general sulfur preparations mainly use stone sulfur mixture and antimony polysulfide. In use, the use of stone sulfur mixture or polysulfide before germination is an effective clearing measure for the clearing of the garden. Pay attention to the proper concentration to avoid environmental impact.
When using copper preparations, we can use Bordeaux fungicides, which are mainly effective in preventing downy mildew, black pox, anthracnose, brown spot, etc., but the effect is a little unstable, also used when used. Pay attention to the concentration. If the concentration is too large, it will affect the leaves and affect photosynthesis.
For EBDC fungicides, they can be divided into domestic and imported. Domestically, you can choose Daisen Zinc, Daisen Ammonium, Mancozeb and other drugs. If the domestic EBDC fungicide is used excessively, it will cause environmental pollution and affect the safety of grapes. Generally, it should be cautious or prohibited in the later stage. Imported EBDC fungicides are safer and do not cause harm to grapes. They can be used throughout the grape growing season and mixed with many insecticides and bactericides, which have certain synergistic effects.
Second, there are many types of systemic fungicides. The better ones are 20% difenoconazole, 80% tebuconazole water dispersible granules, 40% flusilazole, 25% difficile and some antibiotics.
20% difenoconazole is a highly effective systemic fungicide for triazoles. In the early comprehensive prevention and treatment, 3000-5000 times solution is applied with the protective agent; 1000-1500 times solution is applied to the treatment of the anthracnose in the later stage; It is best not to mix with copper preparations.
80% tebuconazole water-dispersible granules are pre-preventively administered with 8000-10000 times solution, 6000 times solution is applied for treatment, and 3000 times solution is applied at the mature stage for treating anthracnose treatment of the ear portion. It has a slight inhibition of growth and is used with caution in small and young fruit.
40% fluorosiliconazole is applied 8000-10000 times solution. Note that the concentration conference has side effects, so it cannot be lower than 8000 times. It can also be used as a bactericide for the treatment and control of black pox after 2 to 3 leaf stage, before flowering and after flowering. Although flusilazole has high activity and good effect, it is mainly bacteriostatic.
25% wearing prickly mold using a concentration of 1000-1500 times before the bag is sprayed with the ear or the ear of the fruit; before the bag is taken, the base of the ear and the ear of the fruit are sprayed; before the bag is harvested, the ear is harvested: the ear of the fruit, or the branch of the lower part of the ear; After the harvest: soak for 1500 times for about 30 seconds, remove it and dry it, then dry it and store it.
Antibiotics are effective in mixing pre- and post-flowering with protective fungicides. They can effectively control grape gray mold, powdery mildew and cob brown blight, and promote grape growth without causing phytotoxicity to grapes.
There are many kinds of grape fungicides. These are relatively good in the sterilization effect. When using, be sure to pay attention to the concentration of the fungicide and reasonable use methods to avoid unnecessary trouble.
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