Dimethoate pesticide for dimethoate pesticide: dimethoate is a systemic methyl parathion pesticide and acaricide. Wide insecticidal range, strong contact killing effect on pests and mites, and certain stomach toxicity. It can be oxidized into omethoate with higher activity in insects, and its mechanism is to inhibit acetylcholinesterase in insects, block nerve conduction and lead to death.
Scope of application: It is suitable for controlling sucking mouthparts pests on various plants, such as aphids, leafhoppers, whiteflies, latent pests and some scale insects, and has excellent control effect on mites.
Precautions for using dimethoate pesticide: pure dimethoate oxide pesticide is a transparent viscous liquid with a density of 1.32 and a melting point of about 135℃. It is soluble and has a refractive index of 1.4987. Soluble in water, alcohol, nitrogen-containing compounds and other organic solvents, slightly soluble in medical ether, but insoluble in ether. Petroleum is a light yellow to transparent viscous liquid, and omethoate EC is a light yellow viscous liquid. It is based on the basic principle that dimethoate is produced by oxidation and metabolism in the inner diameter of organisms, and it is a more susceptible and toxic substance than dimethoate. The methyl parathion pesticide produced by the processing plant has a thick orange liquid and a strong onion, ginger and garlic flavor. Soluble in water, but the reliability of the solution is worse than dimethoate, which is easy to dissolve and ineffective. Omethoate is relatively stable in neutral and slightly acidic aqueous solutions, but it will soon dissolve and fail under the standard of partial alkali.
Omethoate has a strong contact killing effect on pests and mites, especially for some budding insects that have long been resistant to dimethoate, which is extremely susceptible to disease and can still maintain strong toxicity at ultra-low temperature. The medicine is mainly used for controlling various aphids, leaf roller moths, Spodoptera litura, flower thrips, bugs and the like. Among bananas and apples, omethoate has a faster insecticidal effect than omethoate at ultra-low temperature. Omethoate also has a strong internal absorption insecticidal effect, which can be sucked into the body of the main stem by its stems and leaves, and transferred to the parts that have not been sprayed with drugs, so that the pests on it are poisoned and die. Therefore, in the application of omethoate, we can choose to spray it by smearing the stem. Generally speaking, temperature has little harm to the efficacy of omethoate. Omethoate is a harmful pesticide, but it is not easy to penetrate into the body from the skin, and its contact toxicity is not much different from dimethoate.
Precautions for the use of omethoate pesticide: Hazard characteristics: highly toxic pesticide, LD50:50m g/kg； taken orally by pure rats; Percutaneous LD50: 700 mg/kg. Rats were given oral LD 50: 30 ~ 60 mg/kg and percutaneous LD 50: 700 ~ 1400 mg/kg crude oil.
Fire extinguishing method: use dry powder, foam and sand to extinguish the fire. Firefighters must wear gas masks and protective clothing.
First aid: the patient should remove the site pollution, immediately change clothes and trousers, wash his skin with soap and cold water, vomit immediately after meals, take orally 1%~2% natural soda water to wash his intestines, and then send him to a big hospital for treatment. Animated special antidote includes pralidoxime and atropine.
Storage and transportation: No smoking, drinking or eating on site. Can not be mixed with food crops, ingredients, seeds, concentrated feed and various utensils. Lightweight, avoid container damage, pay special attention to keep the refrigeration temperature above crystallizing point in cold season to avoid freezing and mildew. Don't touch the fire source, store it in a cool and ventilated warehouse, and keep it by full-time personnel.
Solution to leakage: Absorb it with gravel soil and dump it in the open area for burial. The road surface polluted by the environment is neutralized with quicklime, then washed with a lot of water, and the dissolved wastewater is put into the sewage system.