| Customization: | Available |
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| CAS No.: | 52645-53-1 |
| Formula: | C21h20ci2o3 |
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| Product Name | Permethrin |
| Specification | 92%TC,93%TC,94%TC,10%EC,25%WP |
| Appearance | The pure product is a solid, and the original drug is a brown-yellow viscous liquid or semi-solid |
| Mode of action | Most of them are touch and stomach poison |
| Scope of application | It is used for the prevention and control of cotton, vegetables, tea and fruit trees, especially for the prevention and control of sanitary pests |
Permethrin is a pyrethroid, it can active against a broad range of pests including lice, ticks, fleas, mites, and other arthropods. It can effectively acts on the nerve cell membrane to disrupt the sodium channel current by which the polarization of the membrane is regulated. Delayed repolarization and paralysis of the pests are the consequences of this disturbance.Permethrin is a pediculicide available in over-the-counter (OTC) medicines that kill head lice and their eggs and prevent re-infestation for up to 14 days. The active ingredient permethrin is for head lice only and is not intended to treat pubic lice. Permethrin can be found in single-ingredient head lice treatments.
Application
It has strong touch and stomach toxicity, and has the characteristics of strong knockout force and fast insecticidal speed. It is more stable to light, and the development of resistance to pests is also slower under the same conditions of use, and it is highly effective against lepidoptera larvae. It can be used in vegetables, tea, fruit trees, cotton and other crops to prevent and control rapeseed, aphids, cotton bollworm, cotton bollworm, cotton aphid, green bug, yellow stripe beetle, peach small food worm, citrus leaf miner moth, 28 stars ladybird, tea inchworm, tea caterpillar, tea moth, lice and other health pests also have a good effect. For example, the control of cotton bollworm and cotton red bollworm, in the egg incubation period, with 10% cream 1000 ~ 1250 times liquid spray, and treat bridge worm and leaf roll worm.
Mode of action
Permethrin is a kind of pyrethroid insecticide that does not contain structure, and it is the first photostable insecticide in pyrethroid pesticides that is suitable for the control of agricultural pests. It has strong contact and gastric toxicity, and has ovicidal and repellent activities, without internal inhalation fumigation. The insecticidal spectrum is wide, and it is easy to decompose and fail in alkaline medium and soil. In addition, compared with cyano-containing permethrin, the toxicity to higher animals is lower, the irritation is relatively small, the knockout speed is faster, and the pest resistance development is relatively slow under the same conditions of use. The insecticidal activity of permethrin is relatively low, the dosage per unit area is relatively high, and it is easy to decompose under sunlight.
Control of sanitary pests
(1) Housefly: In the habitat of housefly, spray with 10% cream 0.01 ~ 0.03ml(effective ingredient 1 ~ 3mg) per cubic meter, which can effectively kill flies.
(2) Mosquitoes: In mosquito habitats, spray with 10% cream 0.01 ~ 0.03ml(effective ingredient 1 ~ 3mg) per cubic meter. For larvae, 10% cream can be diluted to water by 1mg/kg, and then sprayed or poured in puddles where larvae breed, which can effectively kill larvae.
(3) Cockroaches: Use residual spray on the surface of the cockroach activity area, or directly spray on the insect body, the dosage is 0.008g/m2.
(4) Termites: On the surface of bamboo and wood that are vulnerable to ants as residual spray, or inject mosquito nests, use 10% emulsified oil 830 ~ 1000 times liquid, effective concentration 100 ~ 120mg/kg.
Control storage pests
Permethrin is also used to control storage pests (including storage grain pests), such as dried fruit moth, tobacco beetle, Indian grain moth, saw grain robber, red grain robber, millet elephant, corn elephant, wheat moth, rust red grain robber, coarse foot powder mite, quadripleura, etc. Prevent and control the moth corrosion of wool fabric by big fur beetle, black fur beetle, yellow foot beetle, furniture stealing beetle, bag grain moth, etc. Exterminating house termites and reticulitermes, and preventing bamboo wood from being harmed by North American house longiceps, furniture stealing pigs, brown powder beetles, tiny bamboo longiceps, and one-eye bamboo longiceps.
Pesticide use method
1.cotton pest control: cotton bollworm in the egg incubation period, with 10% cream 1000-1250 times liquid spray. The same dose can control red bollworm, bridge worm and leaf roll worm. The seedling aphid can be effectively controlled by using 10% emulsified oil 2000-4000 times liquid spray during the occurrence period. The dosage should be increased to prevent and control aphid.
2.the control of vegetable pests: cabbage insects, diamond-moth in 3 years before the control, with 10% cream 1000-2000 times liquid spray. It can also treat aphid.
3.fruit tree pest control: citrus leaf moth in the initial release of 1250-2500 times the liquid spray of 10% cream, and can also treat orange and other citrus pests, ineffective against citrus mites. When the egg fruit rate reached 1%, the control was carried out with 10% emulsification oil 1000-2000 times liquid spray. At the same dose and in the same period, it can also control pear small food worm, and also treat leaf rolling moth and aphids and other fruit tree pests, but it has no effect on leaf mites.
4.tea tree pest control: control of tea inchworm, tea moth, tea caterpillar, tea thorn moth, in the 2-3 instar larvae blooming period, with 2500-5000 times liquid spray, while also treating green leafhopper, aphids.
5.tobacco pest control: peach aphid, tobacco green insect in the occurrence period with 10-20mg/kg liquid spray evenly.
Toxicity
Low toxicity insecticide. Acute transoral LD50 > 2000mg/kg in rats and acute percutaneous LD50 > 2000mg/kg in rats and rabbits. LC50 for acute inhalation was > 23.5g/m3. It has no irritating effect on rabbit skin, mild irritating effect on eyes, little accumulation in vivo, and no teratogenic, mutagenic and carcinogenic effect under experimental conditions. High toxicity to fish, high toxicity to bees, low toxicity to birds. The rats were fed 1500mg/kg for 6 months and had no effect. The accumulation in rats was small, and no teratogenic, carcinogenic and mutagenic effects were found in animal tests. The LC50 of rainbow trout and bluegill was 0.0032mg/L(96h), the LD50 of acute transoral quail was 13500mg/kg, the LD50 of contact bee was 0.1μg/ bee and transoral 0.2μg/ bee.
First aid for pesticide poisoning
Poisoning symptoms: It is a nerve agent, the skin feels stinging at the contact site, but there is no erythema, especially around the mouth and nose. It rarely causes systemic poisoning. Exposure to large amounts can also cause headache, dizziness, nausea, vomiting, hands shaking, severe convulsions or convulsions, coma, shock.
First aid treatment
[1] There is no special antidote, can be symptomatic treatment.
[2] The stomach can be washed when swallowed in large quantities.
[3] Can not induce vomiting.
Matters needing attention
(1)This medicine should not be mixed with alkaline substances to avoid decomposition failure.
(2)Pay attention to the protection of high toxicity of fish and bees
(3) In the process of use, if the liquid is splashed on the skin, wash it immediately with soap and water; If the liquid is splashed in the eyes, rinse immediately with plenty of water. If taken by mistake should be sent to the hospital as soon as possible for symptomatic treatment.
Explosive hazard characteristics: solvent vapor mixed with air can explode
Flammability Hazard characteristics: The solvent is flammable
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