insecticide is an organophosphate insecticide. Medium toxicity, low toxicity to humans and animals. Rat acute oral LD50 is 400-800 mg / kg, and rat acute percutaneous LD50 is 1200 mg / kg. Fenthion has contact and stomach toxicity, no systemic and fumigation effects, medium residual period, wide insecticidal spectrum, special effects on larvae of Lepidoptera, and can also control pests such as Hemiptera and Coleoptera. The drug is stable to light, easily decomposes when exposed to high temperatures, and hydrolyzes in alkaline media. Iron, tin, aluminum, copper, etc. can cause the drug to decompose, and can be stored in glass bottles for a long time.
Fenitrothion spray is a common type of Fenitrothion insecticide. Rice pests are used to control rice cockroaches. It is applied at the peak of dead heart seedlings and egg hatching. 100% to 125ml of 50% EC is used per 667 square meters, and 50% to water. Spray 75 liters, or pour 400 liters of water. For the prevention and treatment of pupae, it is also applied at the peak of dead heart seedlings and egg hatching. 50 ml of 50% EC is sprayed every 667 square meters, and 50 to 75 liters of water is sprayed or 300 to 400 liters of water is poured. Mix and mix with 13 ~ 20 kg of dry fine soil. When pouring or spraying poisonous soil, the field should maintain a water layer of 3 ~ 5 cm. The control of rice leaf rollers and rice bracts is applied when the second instar larva peaks and the leaves produce "car leaves". Use 100 ml of 50% EC every 667 square meters and spray 50 ~ 75 liters of water. In addition, fenthion has good control effects on thrips, rice weevil, rice leafhopper, rice planthopper, etc. Therefore, the drug is mainly used as an insecticide in rice fields.
The active ingredient fenitrothion is found in a variety of commercial insecticides. Trade names for products containing fenitrothion include Accothion, Agrothion, Bay 41831, Cyfen, Cytel, Dicofen, Fenstan, Folithion, Kaleit, Mep, Metathion, Micromite, Novathion, Nuvanol, Pestroy, Sumanone, Sumithion, and Verthion.
The common name methylnitrophos is used in Eastern Europe.