Acaricide

Acaricides are a class of pesticides that are specifically used to control harmful acarids in the arachnid. Such as Nisolon, bromodecyl ester, dicofuron, dicofol, tetramethylazine, triazole tin, monomethylhydrazine, thioxanthone, quinacridone, hydrazine, acesulfame and the like. Most of the acaricides have a contact or systemic action, and often exhibit certain selectivity to different developmental stages of the cockroach. Some acaricides are effective for cockroaches, pups and eggs, and some can only kill cockroaches and eggs. Invalid; some can only kill eggs, called ovicides. Appropriate acaricides should be selected according to the type of cockroach and the period of control. For example, dicofol is very effective in contact with mites and pups, but it has a poor effect on mites. A variety of organophosphate insecticides such as omethoate, monocrotophos, and sulphate also have acaricidal action, and can be used in rotation with acaricides to control resistant mites or delay the development of drug resistance. Acaricides can be tested with insecticides and fungicides to treat a variety of pests and mites. In 1944, Stauffer Chemical Co. developed a chlorinated sulfone that only kills. Since then, special acaricides have developed rapidly and new varieties have emerged. The main acaricides that appeared in various periods: in the late 1940s, there were chlorpyrifos, chlorfenapyr, chlorfenapyr, and chlorpyrifos; in the 1950s, there were sterols, ethyl sterol, dicofol, and dicofol; In the 1960s, there were smashing cockroaches, eliminating cockroaches, cockroaches, cockroaches, bromo oxime esters, diazepam, insecticides, tricyclic tins; in the 1970s there were benzophenone, phenbutyltin, triazole tin, Amitraz and benzoquinone; in the 1980s, there were decyl ether, phenylthiocarb, tetrazine, and nisol. In order to solve this problem, cockroaches have developed resistance to cockroaches. In order to solve this problem, people are constantly researching and developing new acaricides that can prevent and treat drug-resistant cockroaches. In order to reduce the environmental pollution of pesticides, the development of high-efficiency acaricides is a direction. The successful development of Nisolang is a good example. Its effective concentration for controlling cockroaches is only 30-50 mg/L, and the effective period is 60-70 days. There are many types of acaricides, mainly organic chlorine, organic sulfur, nitrobenzene, organotin, anthracene and heterocyclic. Other types include: sulfur, dinitrophenols, diphenyl alcohols, diphenoxymethanes, diphenylguanidines, diphenylsulfonates, sulfinates, diphenyls. Alkyl ethers, diphenyl sulfides, quinolines, sulfonamides, benzoquinones, anthraquinones, benzimidazoles, benzoquinones, organotins, antibiotics. Acaricides are mostly low-toxic and safe for humans and animals. Terpenes are more resistant to acaricides. There is usually no cross-resistance between different types of acaricides. In order to prevent and control drug resistance and delay the development of steroid resistance, attention should be paid to the rotation or use of different types of acaricides. The existing acaricides have no systemic conduction, and the spray must be even and thoughtful. Some acaricides have high ovicidal activity and do not kill cockroaches. In some cases, the combination of the two types of agents can often increase the acaricidal activity. Special acaricides have no insecticidal effects.