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What Types Of Fungicides Are Classified?
Jul 09, 2018

A bactericide is a compound that has a toxic effect on pathogenic microorganisms. However, the term "bacterial" is not limited to; killing; pathogenic microorganism growth or spore germination has two meanings. The bactericide capable of killing the pathogenic microorganism acts as a bactericidal agent. The fungicide capable of inhibiting the spore germination or growth of the pathogen acts as a bacteriostatic action, and both of these effects can achieve the purpose of preventing disease and treating diseases in agricultural production. The bactericide acts differently and the method of use is also different, the bactericide There are two ways to work: one is a protective fungicide, and the other is a systemic fungicide.

Protective fungicide

The protective fungicide is directly in contact with the pathogenic bacteria in vitro or on the surface of the plant, killing or inhibiting the pathogenic bacteria, making it unable to enter the plant, thereby protecting the plant from the pathogen. The fungicide is called a protective fungicide, and its action is Two aspects: First, the agent sprays directly with the pathogen to kill the pathogen, that is, “contact bactericidal action”; the second is to spray the agent on the surface of the plant, when the pathogen is on the plant body and is exposed to the agent. Poisoning, called "residual bactericidal effect".

Systemic fungicide

The systemic fungicide is applied to a certain part of the crop body and can be absorbed by the crop and transported to other parts of the crop body in the body. The fungicide with this property is called “systemic fungicide”. There are two ways of conduction of systemic fungicides: one is apical conduction, that is, after the agent is absorbed into the plant, it is transmitted to the top of the plant with transpiration to the top leaves, top buds and leaves, and leaf margins. Current systemic absorption The fungicide carbendazim fungicide mostly belongs to this type. The other is the basic conduction, that is, the agent is absorbed by the plant body and then transmitted downward in the phloem along the transport of photosynthesis products.