Chlorfenapyr

Chlorfenapyr is the English name of chlorfenapyr, the trade name of Chujing suspension agent, and the Chinese common name of chlorfenapyr. It is a new heterocyclic insecticidal, acaricidal and nematicidal agent developed by American cyanamide company. With the introduction of the national high toxic pesticide replacement policy and the improvement of people's environmental protection awareness, as the representative of the recommended pesticide varieties for pest control of pollution-free agricultural products, low toxic and efficient chlorfenapyr has been widely used.

Mechanism of action

Bromoinsectin is a precursor of insecticide, which has no toxic effect on insects. After the insect takes food or contacts with bromobug, bromobug nitrile changes into specific insecticide active compound under the action of multifunctional oxidase, and its target is mitochondria in insect body cells. The cell synthesis stopped the life function because of lack of energy. After the administration of medicine, the pest activity became weak, spots appeared, color changed, activity stopped, coma and paralysis, and finally led to death.

Product use

It is a new type of pyrrole insecticide and acaricide. It has good control effect on boring, sucking and chewing pests and mites. It is more effective than cypermethrin and cyhalothrin, and its acaricidal activity is stronger than dicofol and tricyclic tin. It has the following characteristics: broad spectrum insecticidal and acaricidal agents; It has stomach poison and contact killing effect; There was no cross resistance with other insecticides; It has moderate residual activity on crops; In the nutrient solution, the root system has the selective imbibition activity; The oral toxicity to mammals was moderate, while the dermal toxicity was low; The effective application amount was low (100g active ingredient / hm2). Its remarkable insecticidal and acaricidal activities and unique chemical structure have attracted extensive attention.

usage method

Bromide has a certain effect of killing eggs. Combined with the prediction of pests, it is suggested that spraying at the peak of the hatching peak or the peak of egg hatching can play a good control effect.

Because chlorfenapyr has good local conductivity in plants, it can permeate from one side of leaves to the other, so it can also get the same effect on the back of leaves fed by pests.

The control effect was 90-100% in 1-3 days after treatment, and the control effect was still stable at 90% in 15 days after treatment. The recommended dosage was 30-40 ml per mu, and the safe interval was 15-20 days.

Control of diamondback moth, beet armyworm, and 34-50 ml of 10% suspension concentrate on cruciferous vegetables, and 40-50 kg of water spray, should increase the dosage of the aged insects, and the efficacy can be maintained for 15 days. It should not be used more than twice in each growing season. It can be mixed with CIS Cypermethrin, or used in turn with flufenuron and beta Cypermethrin, which can enhance the egg killing effect.