Main types of nematodes

There are two kinds of pesticides used to kill nematodes, one is specific nematodes, that is, pesticides specifically to control nematodes, and the other is facultative nematodes, which have a variety of uses.

According to crop classification, it can be divided into fumigation nematicide and non-fumigation nematode insecticide.

Classified according to chemical structure, it can be divided into:

Organic sulfur, such as carbon disulfide, carbon oxysulfide, halogenated hydrocarbons, such as chloropicrin, methyl bromide, methyl iodide, dichloropropane, bromochloropropane.

Thioisothiocyanate methyl esters, such as Weibai mu, Mianlong.

Organophosphorus. Such as removing line phosphorus, fengxophos, amidophos, butyl phosphorus, benzene line phosphorus, C line phosphorus, thiocarbophos, chlorazophos (millol). This kind of nematicide develops rapidly and has many varieties. The mechanism of action is that cholinesterase is inhibited and poisoned to death, and nematodes are generally sensitive to these agents. Many varieties have internal absorption, and some show contact effect, which is characterized by a wide spectrum of nematodes and few residues in soil, so it is an ideal nematicide at present.