Malathion has good contact killing, stomach toxicity and certain fumigation effects, without internal absorption. After entering the insect body, it is oxidized to malathion, which can play a more toxic role. When entering warm-blooded animals, it is hydrolyzed by carboxylesterase, which is not found in the insect body, thus losing its toxicity. Malathion has low toxicity and short residual period of efficacy, and is effective against the pests of the biting mouthpiece and chewing mouthpiece.

Role of malathion:

1. Low-toxic, broad-spectrum insecticides and acaricides. It has the effects of touch killing and stomach poisoning, but also has weak fumigation, without internal absorption. Due to its strong killing power, rapid action and long-term use, many pests have developed resistance. It can be used to control pests of rice, wheat, cotton, vegetables, tea and fruit trees, such as aphids, rice planthoppers, rice leafhoppers, rice thrips, duckweed borers, crustaceans, red spiders, golden crustaceans, leaf miners, leaf hoppers, cotton leaf worms, slime worms, vegetable borers, tea leafhoppers and fruit tree heart-eaters. It can be used to kill mosquito and fly larvae and bedbugs, and can also be used to create pests in food.

2. Malathion is a highly effective and low-toxic insecticide and acaricide with a wide range of control. It is not only used for rice, wheat and cotton, but also used for pest control of vegetables, fruit trees, tea and warehouses due to its low toxicity and short residual effect. It is mainly used to control rice planthopper, rice leafhopper, cotton aphid, cotton spider, wheat armyworm, pea weevil, soybean heartworm, fruit tree spider, aphid, mealy scale shell worm, nest moth, vegetable yellow jump, vegetable leaf worm, various scale insects on tea trees, as well as mosquitoes, fly larvae and bedbugs.

3. It is a low-toxicity non-invasive insecticide and acaricide, widely used in agriculture and horticulture, and can also be used as household health medicine.

Use method of malathion:

1. Prevention and control of wheat crop pests, armyworm, aphid and wheat sawfly, spray with 45% emulsifiable concentrate 1000 times liquid.

2. Prevention and control of bean crop pests. Soybean borer, soybean bridge worm, pea weevil, pea and pipe aphid, and yellow striped flea beetle shall be spray with 45% emulsifiable concentrate 1000 times, with a spray volume of 75-100 kg per mu.

3. Prevention and control of rice pests: rice leafhopper and rice planthopper.

4. Prevention and control of cotton pests. Cotton leaf jumpers and bug bugs should be spray with 45% emulsifiable concentrate 1500 times.

5. Prevention and control of fruit tree pests All kinds of thorn moths, nest moths, mealy scale insects and aphids on fruit trees shall be spray with 45% emulsifiable concentrate 1500 times liquid.

6. Prevention and control of tea plant pests Tea weevil, white scale, tortoise scale, tea cotton scale, etc., use 45% emulsifiable concentrate 500-800 times of liquid spray.

7. Prevention and control of vegetable pests, such as cabbage caterpillar, vegetable aphid, yellow striped flea beetle, etc., use 45% emulsifiable concentrates and 1000 times liquid spray.

8. Prevention and control of forest pests: geometrid, pine caterpillar, poplar moth, etc., use 150 to 200 ml of 25% oil per mu, and ultra-low volume spray.

9. Prevention and control of health pests: use 45% emulsifiable concentrate 250 times of liquid at the rate of 100-200 ml/m2. The bedbug is treated with 160 times of 45% emulsifiable oil at the rate of 100-150 ml/m2. Cockroaches are treated with 45% emulsifiable concentrate 250 times as 50 ml/m2.