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Fungicides Chemical Preparation
Nov 01, 2017

Fungicides, also known as biocides, bactericidal algicides, microbicides, etc., usually refers to the effective control or kill the water system of microorganisms - bacteria, fungi and algae chemical agents.

Main species

Fungicides, also known as biocides, bactericidal algicides, microbicides, etc., usually refers to the effective control or kill the water system of microorganisms - bacteria, fungi and algae chemical agents. Mainly divided into two kinds of agricultural fungicides and industrial fungicides.

Agricultural fungicides

Is a class of pesticides used to control plant diseases caused by various pathogenic microorganisms, generally referred to as fungicides. But the international community, usually as a control of various types of pathogenic microorganisms in general. With the development of fungicides, but also distinguish between the killing agent, kill the virus, algae and other subclass.

Industrial fungicides

According to the sterilization mechanism can be divided into oxidative sterilization

And non-oxidizing fungicides. Oxidative fungicides are usually strong oxidants, mainly through the bacteria with the metabolism of enzymes in the body to achieve the purpose of sterilization. Commonly used oxidizing fungicides are chlorine, chlorine dioxide, bromine, ozone, hydrogen peroxide and so on. Non-oxidizing fungicides are in the form of toxic agents in the special parts of microorganisms, thereby destroying microbial cells or living body to achieve bactericidal effect, common non-oxidizing fungicides are chlorophenols, isothiazolinones, quaternary ammonium salts Wait

Fungicides by source, in addition to agricultural antibiotics are biogenic fungicides, the main varieties are chemical synthesis of fungicides, fungicides is a class of drugs used to control plant diseases. Any medicine that kills or inhibits the growth of pathogens, but does not prevent the normal growth of plants, collectively referred to as fungicides. Fungicides can be classified according to the mode of action, the source of raw materials and the chemical composition.

According to the use of fungicides classification

The protective agent treats the plant or the surrounding environment with the agent before the pathogenic microorganism has no contact with the plant or is not immersed in the plant, to inhibit the spore germination or kill germ spores to protect the plant from harm, which is called protection effect. The agent having such a function is a protecting agent. Such as Bordeaux liquid, on behalf of the zinc, copper sulfate, green milk copper, mancozeb, chlorothalonil and so on.

The therapeutic agent pathogenic microorganisms have been immersed in the plant, but the plant is in a latent period. Drugs from the plant epidermis into the plant tissue, the transmission, proliferation, or produce metabolites to kill or inhibit pathogens, so that the disease is no longer affected, and to restore health. An agent having such a therapeutic effect is called a therapeutic agent or a chemotherapeutic agent. Such as methyl thiophanate, carbendazim, juniperin and so on.

3, the eradication of the plant refers to plant disease after the application can directly kill the invasive plant pathogens. The agent having such a reducing action is a scavenger. Such as the United States arsenic, sodium pentachlorophenate, stone sulfur mixture.