What insect does chlorpyrifos mainly kill? What is the amount of chlorpyrifos used for pest control?

The main insects killed by chlorpyrifos are: Spodoptera litura, cabbage worm, diamondback moth, yellow curvature, root maggot, aphid, armyworm, rice planthopper, scale worm, etc.

Chlorpyrifos is toxic to bees, fish and other aquatic organisms, silkworms, and should be avoided during the application of the surrounding bee colony, the flowering period of nectar source crops, silkworm chambers and mulberry circles are prohibited. Keep away from the aquaculture area for pesticide application, and it is forbidden to clean pesticide application equipment in water bodies such as rivers and ponds.

Wear protective clothing and gloves when using chlorpyrifos to avoid inhalation. After application, wash the instrument thoroughly, bury or incinerate the bag, and immediately wash your hands and face with soap.

Chlorpyrifos mainly killsMole crickets, grubs,Ground Tiger, vegetable roots, sugarcane, tortoiseshells and other soil pests and lepidoptera, coleoptera, homoptera, hemipteran pests and mites, thrips and other insects. Chlorpyrifos is a moderately toxic insecticide that is extremely toxic to aquatic organisms and may have long-term adverse effects on the water environment if used for a long time.

The effects of chlorpyrifosIt has the triple effects of stomach poisoning, contact killing and fumigation, and has good control effect on a variety of chewing and sucking mouthparts pests on rice, wheat, cotton, fruit trees, vegetables and tea trees. It has good compatibility with mixed use, and can be mixed with a variety of pesticides and has obvious synergistic effect. Compared with conventional pesticides, it has low toxicity and is safe for natural enemies, and it is a substitute for highly toxic organophosphorus pesticides.

Chlorpyrifos has a wide range of applications, and chlorpyrifos has contact killing, stomach poisoning and fumigation effects. The residue period on the leaves is not long, but the residue period in the soil is long, so the effect on underground pest control is better, and it is harmful to tobacco. Chlorpyrifos is suitable for a variety of chewing and stinging mouthparts pests on rice, wheat, cotton, fruit trees, vegetables, tea trees, and can also be used to control urban health pests.

The leaf moth of the apple tree is sprayed with 1000 times of 40% emulsifiable concentrate, and the cotton aphid of the apple tree is sprayed with 1200-1500 times of 30% microemulsion or 600-800 times of 15% microemulsion, and the cotton aphid can also be killed by soaking the scion with 48% emulsifiable concentrate 1500 times for 10 seconds or soaking the roots of transplanted seedlings for 30 seconds.

2. Lychee pests.

Spray with 800-1000 times of 40% emulsifiable concentrate to spray the lychee stem borer 20 days before harvesting, and spray it again once after 7-10 days; For lychee moth and litchi tip moth, apply pesticides at the beginning of the new shoots of lychee and the beginning of young leaves; For litchi scale insects, the pesticide was applied at the peak of larval scales.

3. Rice pests.

It mainly controls the two borer, the three borer, the rice leaf roller, the rice gall mosquito, the rice weevil, the rice planthopper, etc. Generally, 50-60 ml of 40% chlorpyrifos can be sprayed per mu for control.

4. Vegetable pests.

It can mainly control pests such as cabbage worm, diamondback moth, bean * borer, Spodoptera litura, spotted submarine fly, etc., and under normal circumstances, 50-60 ml of 40% chlorpyrifos can be used per mu for spraying with water.

5. Cotton pests.

It can control pests such as red spiders, blind bugs, cotton aphids, cotton bollworms, red bollworms, etc., and spray evenly with 60-70 ml of 40% chlorpyrifos mixed with water per mu.

6. Underground pests.

It has a good control effect on grubs, ground tigers, needleworms, root maggots, and can usually be diluted into 800-1000 times with 40% chlorpyrifos emulsifiable concentrate for watering plants to control underground pests.

7. Tea tree pests.

It can control pests such as tea inchworms, tea moths, tea caterpillars, stinging moths, and tea mites. It can be sprayed with 1000 times of 40% chlorpyrifos.

8. Wheat pests.

Wheat armyworm can be sprayed with 40% chlorpyrifos EC 40ml (active ingredient 16g) + 40-50kg of water per mu for control. At the age of 2-3 days, 50-75ml of 40% chlorpyrifos emulsifiable concentrate (active ingredient 20-30g) + 40-50kg of water should be sprayed and controlled per mu. At the pupation stage of the sucking worm, 800-1000 grams of 5% granules or 150 ml of 48% emulsifiable concentrate are used per mu, mixed with 20-30 kg, sprinkled on the ground of the wheat field and watered in time.

This needs to be decided according to the planting area of the plant, and when using this insecticide, you must choose some with better effect, and you must spray it evenly, so that the effect is better.

First of all, it is necessary to choose the appropriate amount according to the planting area, but also according to the variety of crops, and be sure to choose 2:1 water mixed together.

About 48% is enough, which is a reasonable concentration and can also effectively prevent ticks.