What are the functions and usage of trichlorfon?

What are the effects and uses of trichlorfon? What should I pay attention to when using trichlorfon? Please also understand the netizens to help introduce In the agricultural materials market, often see 30%, 40% EC or 50%, 80% soluble powder trichlorfon pesticide, but there are many netizens on the efficacy of trichlorfon and the use of methods are not very understanding, so farming network sorted out trichlorfon insecticidal effect and pest control methods, the following detailed list for netizens reference. Effects of trichlorfon: Trichlorfon mainly has strong stomach toxicity to pests, and has contact toxicity to pests; trichlorfon has permeability to plants, but has no systemic conduction. Trichlorfon can be used to control chewing mouthparts pests, livestock parasites and sanitary pests on rice, wheat crops, vegetables, fruit trees, cotton and other crops. This is mainly for agricultural use. How to use trichlorfon: 1. It is used to control rice stem borer, rice leaf miner, rice ironworm, rice bract worm, rice leaf roller, rice planthopper and other pests: 80% trichlorfon soluble powder 150~200 g per mu can be sprayed with 75~100 kg of water. The safety interval for trichlorfon use in rice should be greater than 7 days. Second, for the control of geometrid, celestial moth, leaf roller, whitefly, sawfly, grass moth, elephant beetle, jasmine leaf moth, leaf miner, poison moth, thorn moth, lamp moth, armyworm, mulberry caterpillar, butterfly, longicorn and other young larvae: can use 90% trichlorfon crystal, mixed with water 1000 times liquid for spray control. Third, for the control of vegetable tobacco green worm, yellow cucumber, yellow jump and other pests: 80% trichlorfon soluble powder 80~100 grams per mu, mixed with 75~100 kilograms of water for spray control. The safety interval for trichlorfon use in vegetables should not be less than 7 days. 4. For controlling onion maggots, radish maggots and cabbage maggots: trichlorfon can be used for root irrigation control with 1000~1500 times of water. Trichlorfon precautions: Trichlorfon is not easily absorbed by human skin, and has little effect on most beneficial insects and natural enemies of pests, but it is toxic to bees. 2. Trichlorfon should not be placed too long after dilution, and should be prepared for immediate use. 3, corn and apples are sensitive to trichlorfon, so pay attention to trichlorfon when applying trichlorfon to corn and apples. What is the effect of chlorantraniliprole on underground pests?