What pesticides are used to treat rice gall mosquitoes, and what pests are treated with cypermethrin

It's very simple, spray 40g with 48% chlorpyrifos EC, or 30g of 4% high chlorine mixed with 15kg of water.

Cypermethrin cannot be used to treat rice insect pests.

Cypermethrin is a pyrethroid insecticide and acaricide, with moderate toxicity, with contact, stomach toxicity and a certain repellent effect, no systemic and fumigation effect. It is a nerve agent that acts on the nervous system of insects, causing insects to be overexcited, paralyzed and killed. The drug has a wide spectrum of insect control, fast knockdown effect, long duration of effect, and its biggest feature is that it has a good control effect on many kinds of pests and a variety of leaf mites at the same time, especially suitable for use when pests and mites are combined.

Eligibility. Cypermethrin is widely used in crops, often used in apples, citrus, lychees, peach, chestnut trees and other fruit trees and cotton, tea, cruciferous vegetables, melon and fruit vegetables, flowers and other plants, mainly used for the control of leaf mites, gall mites, cabbage worms, diamondback moths, beet armyworms, cotton bollworms, red bollworms, tea inchworms, small green leafhoppers, leaf miners, heartworms, curly moths, aphids, whiteflies, thrips and blind tsubaki and other pests and mites. It is widely used in the control of insect mites in various fruit trees, cotton, vegetables, tea and other crops.

Use technology. Cypermethrin is mainly used to control pests and mites by spraying, and has a good effect on drug control from the peak of eggs to the hatching stage or the early stage of pest mite occurrence or young age. Generally, 20% emulsifiable concentrate or 20% water emulsion, or 20% wettable powder 1500 to 2000 times liquid, or 10% to 20% emulsifiable concentrate or 10% microemulsion 800 to 1000 times liquid, spray evenly, pay special attention to the lower part and inner chamber of the fruit tree.

Pay attention to alternate or mixed use with different types of agents such as organophosphorus and organochlorine to prevent drug resistance. It has higher efficacy and longer duration at low temperatures, making it especially suitable for use in early spring and autumn and winter. The harvest safety interval is 21 days for cotton and 14 days for apples.

The drug is highly toxic to fish, silkworms and bees, so avoid applying pesticides in mulberry gardens and beekeeping areas and the liquid medicine flowing into rivers.

Summary. Gall mosquitoes are controlled with the following pesticides: clean up the branches, leaves, and fruits of insects on and under the trees, and burn them intensively to reduce the source of overwintering insects.

In mid to late April, when the jujube tree sprouts and spreads its leaves, the following agents are sprayed: 40% oxymethoate EC 1000 1500 times solution; 25% chlorpyramide suspension emulsion 1000 1500 times; 2500-3000 times of toxic chlorine emulsifiable concentrate; 10% cypermethrin EC 2000 3000 times liquid; 20% emulsifiable fenvalerate 1000 2000 times; deltamethrin EC 2000 4000 times liquid; 20% hydroamidophos emulsifiable concentrate 400 500 times liquid; 25% thiazinone wettable powder 1000 1500 times liquid; 80% dichlorvos emulsifiable concentrate 800 1000 times, spray 1 time every 10 days, spray 2 3 times in a row.

Gall mosquitoes are controlled with the following pesticides: clean up the branches, leaves, and fruits of insects on and under the trees, and burn them intensively to reduce the source of overwintering insects. In mid to late April, when the jujube tree sprouts and spreads its leaves, spray the following agents:

40% oxymethoate EC 1000 1500 times liquid; 25% chlorpyramide suspension emulsion 1000 1500 times; 2500-3000 times of toxic chlorine emulsifiable concentrate; 10% cypermethrin EC 2000 3000 times liquid; 20% emulsifiable fenvalerate 1000 2000 times; deltamethrin EC 2000 4000 times liquid; 20% hydroamidophos emulsifiable concentrate 400 500 times liquid; 25% thiazinone wettable powder 1000 1500 times liquid; 80% dichlorvos emulsifiable concentrate 800 1000 times, spray 1 time every 10 days, spray 2 3 times in a row.

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OK! Dichlorvos.

It is a broad-spectrum insecticide and acaricide. It has contact killing, stomach poisoning and fumigation effects. The contact killing effect is better than that of trichlorfon.

The effect is good, and the knockdown force against pests is strong and fast. Dichlorvos can control rice brown planthopper and cotton red bollworm. Fumigation of poisonous soil or chaff in the field can control armyworms.

Spraying of liquid medicine can control hidden pests such as rice leaf rollers. Dichlorvos can be quickly decomposed after application, with a short duration of effect and no residue, and can be applied in a short period of time before the crop harvest to prevent and control pests of piercing and sucking mouthparts and chewing mouthparts, so it is suitable for apples, pears, grapes and other fruit trees and vegetables, mushrooms, tea trees, and mulberry trees.

In tobacco, the prohibition period before harvest is generally about 7 days. It is easy to cause pesticide damage to sorghum and corn, and melons and beans are also sensitive, so attention should be paid to when using them.

Pyrethrum.

Pyrethrum, known for producing natural pyrethroids from its flower heads, is an insecticidal plant that has been commercially cultivated on a large scale, and flower head extracts can also be used as raw materials for mosquito coils.

Pyrethrum simulates the phenomenon of aphid alarm, which is highly similar to the alarm mechanism of aphid colonies. When an aphid is attacked by a predator, its abdominal tube releases EBF to warn its companions to stop feeding and avoid danger as soon as possible. Natural enemies of aphids, such as ladybugs, are likely to intercept this signal for food source locating.

Pyrethrum is also an important plant pesticide that kills pests on crops, trees and fruit trees, as well as pests and mites from livestock and farm animals.

The inflorescence of pyrethria contains four insecticidal components, pyrethrini A and B and cinerini II. The insecticidal effect is strongest in pyrethic. However, the above four components are unstable and easy to hydrolyze and fail.

The pharmacological effect of insecticide is to paralyze the nerves of insects;

After insect poisoning, vomiting, diarrhea, squirming back and forth of the body, and then paralysis, can lead to death, and the length of death varies depending on the dosage and insect species.

General insects, after being paralyzed and drunk, can be resuscitated within 24 hours; After housefly poisoning, it is completely paralyzed within 10 minutes, and the mortality rate is 60-70%. It is also toxic to arthropods, fish, amphibians and reptiles; It is not obvious to birds and mammals. The insecticidal effect of pyrethrin A is 10 times stronger than that of pyrethrin B; The virulence of glitter A is comparable to pyrethrin A, whereas the virulence of glitter B is comparable to pyrethrin B.

The strongest mosquito killer is "dichlorvos", but because the toxicity of dichlorvos is very strong, people will be poisoned if they are inhaled when they are used.

The pesticide "dichlorvos" can repel mosquitoes, dichlorvos is an organophosphate pesticide, widely used in crop insecticide, as well as household mosquito control, flies. However, due to the high toxicity of "dichlorvos", it is easy to inhale or accidentally ingest or poison when used. Some people even use it to commit suicide, so be sure to use it with caution.

The pure product is a colorless to amber liquid with a slight aromatic flavor. The preparation is a light yellow to yellow-brown oily liquid, which decomposes slowly in aqueous solution, accelerates decomposition in case of alkali, is stable to heat, and corrosive to iron. It is poisoning to humans and animals, highly toxic to fish, and highly toxic to bees.

Pharmaceutical applications. 1. Maggot extermination: add 500 parts of water to 1 part of the stock solution (50% emulsion), spray the manure pit or sewage surface, and use the stock solution per square meter.

2. Kill lice: spray the above dilution solution on the quilt and let it sit for 2 3 hours.

3. Mosquito and fly control: 2ml of original solution, add 200ml of water, splash on the ground, close the window for 1 hour, or soak the original solution in cloth strips and hang it indoors, about 3 5ml per house, which can be effective for 3 7 days.

4. Kill bed bugs: 1 part of the stock solution, add 200 parts of water, and use it to brush the gaps.

Gennong mosquito killer, professional mosquito killer, China Agricultural University experts exclusive formula mosquito killer.

Most insecticide pesticides can kill mosquitoes.

Dichlorvos, cypermethrin and the like.

The following pesticides are used to control gall mosquitoes: clean up the branches, leaves and fruits of insects on and under the trees, and burn them intensively to reduce the source of overwintering insects. In mid to late April, when the jujube tree sprouts and spreads its leaves, spray the following agents:

40% oxymethoate EC 1000 1500 times liquid; 25% chlorpyramide suspension emulsion 1000 1500 times liquid is good and quiet; 2500-3000 times of toxic chlorine emulsifiable concentrate; 10% cypermethrin EC 2000 3000 times liquid; 20% emulsifiable fenvalerate 1000 2000 times; deltamethrin EC 2000 4000 times liquid; 20% hydroamidophos emulsifiable concentrate 400 500 times liquid; 25% thiazinone wettable powder 1000 1500 times liquid; 80% dichlorvos emulsifiable concentrate 800 1000 times, spray 1 time every 10 days, spray 2 3 times in a row. For more information about what pesticides are used to prevent gall mosquitoes, enter to see more content.