Action and efficacy of deltamethrin

Deltamethrin is a kind of broad-spectrum insecticide, which has a quick knockout and long-lasting insecticidal effect, and has a good control effect on a variety of crop pests.

Deltamethrin is a kind of broad-spectrum insecticide, which has a quick knockout and long-lasting insecticidal effect, and has a good control effect on a variety of crop pests. The mechanism of its action is to cause rapid death of pests by interfering with their nervous system. Deltamethrin has the characteristics of high efficiency, low toxicity and environmental protection, and has been widely used in agricultural production.

Insecticidal spectrum

Deltamethrin is effective against lepidoptera, orthoptera, thysanoptera, hemiptera, diptera, Coleoptera and other pests, such as cotton bollworm, citrus leaf miner, inchworm, sugarcane borer, etc. However, it has a very low or basically ineffective effect on mites, scale insects, and bug elephants, and even stimulates the reproduction of mites. When insects and mites are concurrent, it is necessary to mix with special acaricides.

Usage method

Deltamethrin can be prepared into cream or wettable powder, which should be adjusted reasonably according to different stages of pests and different growth stages of crops. For example, in the control of sanitary pests, the main treatment is to treat the surface of the activity and habitat of sanitary pests by water or brushing. The cockroach can also be prepared poison bait to kill. When used on non-fruit tree crops such as grain, cotton, oil, vegetables, sugar, tea, traditional Chinese medicine plants and grassland, generally use 2.5% cream or 25 g/l cream or 2.5% microemulsion 40~50 ml per 667 square meters, or 2.5% wettable powder 40~50 g, or 50 g/l cream 20~25 ml, Or 25% water dispersion tablet 4~5 grams, 30~60 liters of water spray.

Environmental and health impacts

Despite the above advantages of deltamethrin, it also has certain environmental and health risks. Deltamethrin has an irritating effect on human skin and eye mucosa, and is highly toxic to fish and bees. Prolonged or excessive exposure may cause skin irritation, respiratory discomfort and other health problems. Therefore, during use, protective clothing and gloves should be worn to avoid direct contact with the skin and inhalation of its vapor. In addition, deltamethrin is more stable in acidic media and less stable in alkaline media.