Fungicides Are Classified According To Their Conductivity Properties

1. Systemic fungicides
Systemic fungicides can be absorbed by plant leaves, stems, roots, and seeds into plants, and can be transported, diffused, retained, or produce metabolites through plant body fluids, which can prevent and control some diseases that penetrate deep into plants or in the endosperm of seeds to protect crops It is not infected by pathogens or treats infected plants, so it has therapeutic and protective effects. Such as carbendazim, Lectra, Lvheng No. 2, Duomycin, Shuangyeqing, Thiacin copper, metalaxyl, phosphonaluminum, thiophanate-methyl, methoxone, fenxining, copper metalax, anti-virus alum , Seed dressing double and so on.
2. Non-systemic fungicides
Non-systemic fungicides refer to agents that cannot be systemically absorbed by plants, conducted and retained. Most varieties are non-systemic fungicides, which are less likely to cause pathogens to develop resistance and are relatively economical, but most of them only have a protective effect and cannot prevent and control diseases that penetrate deep into the plant. Such as zinc sulfate, copper sulfate, dodine, chlorothalonil, green milk copper, surfactant, synergist, sulfur compound, plant ash, Bordeaux mixture, mancozeb, thiram, etc. In addition, fungicides can also be classified according to the method of use, such as seed treatment agents, soil disinfectants, sprays, etc.
3. Protective fungicides
There are mainly the following categories: sulfur and inorganic sulfur compounds, such as sulfur suspending agent, solid lime sulfur mixture, etc.; copper preparations, mainly including Bordeaux mixture, cuproammonia mixture, etc.; organic sulfur compounds, such as thiram, zinc, and zinc ammonium, mancozeb, etc.; phthalimides, such as captan, captafol, and folpet, etc.; antibiotics, such as Jinggangmycin, blasticidin, polyoxin, etc.; other types, such as Yekuling, Yekujing, Chlorothalonil, Hesuining, etc.