Commonly used fruit tree fungicides are imazalil, flusilazole, carbendazim, etc. According to the different ways of action of fungicides, they can be divided into internal bactericides, antibiotic bactericides, etc. Let's take a look at Xiaobian together. .
1. Protecting agent: It is applied to the surface of the plant before the pathogen has reached the host plant or has not invaded the host to prevent the spores from germinating or killing the spores that are germinating, so as to protect the plants from the germs. Such as Bordeaux mixture, Desen zinc, antibacterial, etc., generally non-water-soluble, able to withstand weather and erosion and longer lasting protection.
2, eradication agent: after the plant onset, applied to the surface of the plant to kill the bacteria that have entered but the majority of the bacteria are still on the surface of the host, such as powdery mildew bacteria are mostly controlled by sulfur drugs. Scavengers are mostly used in crop dormancy. If the tree is used in winter, the whitening agent or high concentration of stone sulphur is used to kill the overwintering bacteria. Some eradication agents can also be used in agricultural tools and soil disinfection to kill the bacteria and nematodes, such as Fuer. Marin and so on.
3, systemic fungicide: the agent can penetrate into the tissue through the plant epidermis, and in the plant rest with the proliferation of diffusion or metabolites to protect plants from pathogens or to treat diseases such as wilting, benzene Leite, Tobuzin, etc. These agents are resistant to rain and are effective against deep pathogens, but are also susceptible to pathogen resistance.
4, antibiotic fungicide: the use of some fungal metabolites to kill or inhibit other fungi. Also known as biological agents, such as quercetin, cerulein and so on.
Today About fruit tree species on here fungicides, pesticides want to get more knowledge, please pay attention to China Pesticide Network
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