New pyrethroid agricultural insecticide bifenthrin
What is bifenthrin (82657-04-3)?
The pesticide bifenthrin is an organic compound with the chemical formula C23H22ClF3O2, Cas 82657-04-3, white solid. Soluble in chloroform, dichloromethane, ether, toluene, heptane, slightly soluble in pentane. It is one of the new pyrethroid agricultural pesticide varieties. It has the characteristics of strong knockdown effect, broad spectrum, high efficiency, rapidity, and long residual effect. It mainly has contact killing effect and gastric poisoning effect, and has no systemic effect. It can be used to control cotton bollworms, pink bollworms, tea loopers, tea caterpillars, apple or hawthorn spider mites, peach heartworms, vegetable aphids, cabbage caterpillars, diamondback moths, citrus leaf miners, etc.
As a highly efficient synthetic pyrethroid insecticide, bifenthrin has contact and stomach poisoning effects. It has a long lasting effect and fast insecticidal speed. It can control insect pests such as red spider mites, aphids, and whiteflies.
The insecticide bifenthrin has contact killing and stomach poisoning effects on pests; but no systemic or fumigation effects; it has a broad insecticidal spectrum and rapid action; it does not move in the soil, is relatively safe for the environment, and has a long residual effect. It is suitable for cotton, fruit trees, vegetables, tea and other crops to control lepidopteran larvae, whiteflies, aphids, leaf miners, leafhoppers, spider mites and other pests and mites. It is especially used when pests and mites coexist, saving time and medicine.
Bifenthrin (82657-04-3) Physical and Chemical Properties
Appearance: Pure product is white solid
Solubility: water 0.1mg/L, acetone 1.25kg/L, soluble in chloroform, methylene chloride, ether, toluene, heptane, slightly soluble in pentane. Methanol.
Stability: Stable to light and relatively stable in acidic media. It is still relatively stable after one year of storage at room temperature, but it will decompose in alkaline media. The original drug is stable for more than 1 year at 25°C, and the stability is more than 1 year when stored at room temperature. Stable for 21 days at pH 5-9 (21°C), DT50-65-125 days in soil.
Melting point: 68-71℃, density: d25 1.210, vapor pressure at 25℃ is 2.4×10-2 Pa.
Bifenthrin (82657-04-3) Toxicity
The insecticide bifenthrin is highly toxic to fish, with an LC50 of 0.00015mg/L for rainbow trout (96 hours) and 0.00016mg/L for water fleas (48 hours). However, due to the high affinity of this agent in soil and its low water solubility, the actual impact is small. The insecticide bifenthrin is moderately toxic to bees and highly toxic to silkworms. The insecticidal activity is very high, mainly due to contact and gastric poisoning, and has no systemic or fumigation activity. It acts quickly, has a long lasting effect and has a broad insecticidal spectrum.
Bifenthrin (82657-04-3) Features
The insecticide bifenthrin has contact and stomach poisoning effects on pests; but it has no systemic or fumigation effects. Broad insecticidal spectrum and rapid action. It does not move in the soil, is relatively safe for the environment, and has a long residual effect. It is suitable for cotton, fruit trees, vegetables, tea and other crops to control lepidopteran larvae, whiteflies, aphids, leaf miners, leafhoppers, spider mites and other pests and mites. It is especially used when pests and mites coexist, saving time and medicine.
Bifenthrin (82657-04-3) function
The insecticide bifenthrin is a pyrethroid insecticide and acaricide. It has contact and gastric poisoning effects without systemic or fumigation effects. It has a broad insecticidal spectrum and rapid action. It does not move in the soil, is safer for the environment, and has a long residual life. Bifenthrin can be processed into emulsifiable concentrate, wettable powder, suspension and other dosage forms. It is mainly used for cotton, tea trees, fruit trees, vegetables, cereals and other crops to control various aphids, cotton bollworms, red bollworms, tea loopers, Tea caterpillars, tea leafhoppers, fruit tree borers, citrus leaf miners, cabbage caterpillars, cabbage exigua, etc. It can also treat mites. Because the effect is unstable and drug resistance is easy to develop, it is not used as a special acaricide. The spray should be uniform. For boring pests, the pesticide should be applied before the larvae penetrate the crops. The residual period is generally 7 to 15 days.
Bifenthrin (82657-04-3) Functional Characteristics
1. The insecticide bifenthrin has contact and stomach poisoning effects, but has no systemic or fumigation activity. Bifenthrin has fast knockdown speed, long residual effect, broad insecticidal spectrum, and good control effect against mites. Mainly used to control various lepidopteran larvae, whiteflies, aphids, and herbivorous spider mites.
2. The insecticide bifenthrin controls cotton bollworm, cotton red spider mite, peach heartworm, pear heartworm, hawthorn spider mite, citrus spider mite, yellow spot bug, tea-winged stink bug, cabbage aphid, cabbage caterpillar, diamondback moth, There are more than 20 kinds of pests such as eggplant red spider mite, tea fine moth, greenhouse whitefly, tea looper, and tea caterpillar.
3. The insecticide bifenthrin has high insecticidal activity, mainly contact killing and stomach poisoning, but no systemic or fumigation activity. It acts quickly, has a long lasting effect and has a broad insecticidal spectrum.
Bifenthrin (82657-04-3) insecticidal speed and duration
The insecticide bifenthrin has contact and gastrotoxic effects. It is precisely because of its contact killing effect that the insects begin to die 1 hour after application, and the insect death rate is as high as 98.5% within 4 hours, and it kills eggs, larvae, and adult mites; in addition, bifenthrin has a long-lasting effect. The validity period is about 10-15 days.
Bifenthrin (82657-04-3) insecticidal activity
The insecticide bifenthrin has higher insecticidal activity than other pyrethroids and has better insect control effect. When it is used on crops, it can penetrate into the crops. Once pests harm the crops, the bifenthrin liquid in the crops will poison the pests.
Bifenthrin (82657-04-3) Application
The insecticide bifenthrin is processed into emulsifiable concentrate, wettable powder, suspension and other dosage forms for use. Mainly used for cotton, tea trees, fruit trees, vegetables, cereals and other crops to prevent and control various aphids, cotton bollworms, pink bollworms, tea loopers, tea caterpillars, tea green leafhoppers, fruit tree heartworms, citrus leaf miners, cabbage caterpillars , Cabbage Spodoptera exigua, etc. It can also treat mites. Because the effect is unstable and drug resistance is easy to develop, it is not used as a special acaricide. The spray should be uniform. For boring pests, the pesticide should be applied before the larvae penetrate the crops. The residual period is generally 7 to 15 days.
Bifenthrin (82657-04-3) Characteristics
1. The insecticide bifenthrin is applicable to a wide range of crops and kills many insects. Bifenthrin can be used on wheat, barley, apples, citrus, grapes, bananas, eggplants, tomatoes, peppers, watermelons, cabbage, green onions, cotton and other crops.
The diseases that can be controlled include red spider mites, aphids, cabbage caterpillars, diamondback moths, peach heartworms, whiteflies, tea caterpillars and other pests, with a relatively wide insecticidal spectrum.
2. The insecticide bifenthrin kills insects quickly and lasts for a long time. Bifenthrin has contact and gastrotoxic effects. It is precisely because of its contact killing effect that the insects begin to die 1 hour after application, and the insect death rate is as high as 98.5% within 4 hours, and it kills eggs, larvae, and adult mites; in addition, bifenthrin has a long-lasting effect. The validity period is about 10-15 days.
3. The insecticide bifenthrin has high insecticidal activity. The insecticidal activity of bifenthrin is higher than other pyrethroid agents, and the insect control effect is better. When it is used on crops, it can penetrate into the crop and move from top to bottom as the liquid moves inside the crop. Once pests harm the crop, the bifenthrin liquid in the crop will poison the pests.
4. Insecticide bifenthrin compound. Although a single dose of bifenthrin is very effective in killing insects, as time and frequency of use increase, some pests will gradually develop resistance to it. Therefore, it can be used in combination with other chemicals to achieve better insecticidal effects: bifenthrin + thiamethoxam, bifenthrin + fenacetonitrile, bifenthrin + sulfonicamid, bifenthrin Ester + lufenuron, bifenthrin + thiacloprid, bifenthrin + clothianidin, bifenthrin + dinotefuran, bifenthrin + imidacloprid, bifenthrin + acetamiprid, etc.
Bifenthrin (82657-04-3) uses
The insecticide bifenthrin is a pyrethroid insecticide and acaricide. It has the characteristics of strong knockdown effect, broad spectrum, high efficiency, rapidity and long residual effect. It mainly has contact killing effect and gastric poisoning effect, and has no systemic effect. It can be used to control cotton bollworms, pink bollworms, tea loopers, tea caterpillars, apple or hawthorn spider mites, peach heartworms, vegetable aphids, cabbage caterpillars, diamondback moths, citrus leaf miners, etc. For example, to control cotton bollworm and red bollworm during the second and third generation egg hatching period, before the larvae penetrate the buds and bolls, or to control cotton spider mites, use 10% EC 3.4~6mL/100m2 during the adult and nymphal mite occurrence stages. 7.5~15kg of water or 4.5~6mL/100m2 spray 7.5kg of water. It can also control cotton aphids, bridge-building insects, leaf rollers, thorn moths, thrips, etc. To control tea geometrids, tea caterpillars, and tea fine moths, spray 10% EC 4,000 to 10,000 times.
The insecticide bifenthrin can kill both insects and mites, and has a good control effect on cotton, vegetables, fruit trees, tea trees and other pests.
The insecticide bifenthrin can control cotton bollworm, cotton spider mite, peach heartworm, pear heartworm, hawthorn spider mite, citrus spider mite, yellow spot bug, tea-winged stink bug, cabbage aphid, cabbage caterpillar, diamondback moth, and eggplant. More than 20 kinds of pests including red spider mites, tea moths, greenhouse whiteflies, tea geometrids, and tea caterpillars.
1. Prevent and control underground pests in crops such as melons and peanuts, such as grubs, mole crickets, wireworms, etc.
2. Control vegetable pests such as aphids, diamondback moth, Spodoptera litura, beet armyworm, cabbage caterpillar, greenhouse whitefly, eggplant spider mite, tea yellow mite and other vegetable pests.
3. Prevent and control tea tree pests such as tea geometrids, tea caterpillars, tea black poisonous moths, tea thorn moths, small green leafhoppers, tea yellow thrips, tea shortbeard mites, leaf gall moths, black thorn mealybugs, tea weevils, etc.
How to use bifenthrin (82657-04-3)
1. To control eggplant red spider mites, you can use 30-40 ml of 10% bifenthrin EC per acre, mix it with 40-60 kg of water and spray evenly. The duration of effect is about 10 days; for yellow mites on eggplant, you can Use 30 ml of 10% bifenthrin emulsifiable concentrate and 40 kg of water, mix evenly and then spray for control.
2. In the early stages of whitefly occurrence on vegetables, melons, etc., you can use 20-35 ml of 3% bifenthrin aqueous emulsion or 20-25 ml of 10% bifenthrin aqueous emulsion per acre, mixed with 40-60 kg of water and spray Prevention and treatment.
3. For inchworms, small green leafhoppers, tea caterpillars, black thorn mealybugs, etc. on tea trees, you can use 1000-1500 times of chemical spray to control them during the 2-3 instar and nymph stages.
4. For adults and nymphs such as aphids, mealybugs, and spider mites on vegetables such as cruciferous and cucurbitaceous vegetables, spray 1000-1500 times the liquid to control them.
5. For the control of cotton, cotton spider mites and other mites, and citrus leafminer and other pests, you can use 1000-1500 times of chemical solution to spray the plants during the egg hatching or full hatching stage and the adult stage.
Bifenthrin (82657-04-3) usage technology
Control cotton pests
(1) The insecticide bifenthrin is used to control cotton bollworms: Apply the pesticide during the peak egg hatching period. Use 23-40ml of 10% bifenthrin EC per acre and spray it with 50-60kg of water. The insecticide will be killed within 7-10 days after application. Bud effect is good. This dose can also be used to control pink bollworm. The appropriate period for prevention and treatment is the peak hatching period of the second and third generations of eggs, and the drug should be used twice for each generation.
(2) The insecticide bifenthrin controls cotton spider mites: Apply during the adult and nymphal mite occurrence periods. Use 30 to 40 ml of 10% EC per acre and spray 50 to 60 kg of water. The residual effect period is about 12 days. It can also control cotton aphids and cotton aphids. Bridge-building insects, leaf rollers, thrips, etc. (if used specifically to control cotton aphids, the dosage can be halved).
2. Prevent and control fruit tree pests
(1) The insecticide bifenthrin is used to control peach heartworms: Apply during the peak egg hatching period. When the egg and fruit rate reaches 0.5% to 1%, spray with 10% bifenthrin EC 3 300 to 4 000 times. . Spraying 3 to 4 times throughout the season can effectively control the damage, and the residual effect period is about 10 days.
(2) Use the insecticide bifenthrin to control apple spider mites: Apply the pesticide before or after apple blossoms, when adult and nymphal mites occur, when there are an average of 2 mites per leaf, and use 10% EC 3 300 to 5 000 times liquid spray. In the case of low mite population density, the residual effect period is 24 to 28 days. It can also be used to control leaf miners and red spider mites on other fruit trees.
3. Prevent and control vegetable pests
(1) Use the insecticide bifenthrin to control whiteflies: In the early stages of whitefly occurrence, when the insect population density is not high (about 2/plant), apply the pesticide at the following dosage: 2 active ingredients per acre for cucumbers and tomatoes grown in greenhouses Spray ~2.5g into 50kg of water. For open field cultivation, use 2.5 ~ 4g of active ingredient per acre to spray into 50kg of water. The damage can be effectively controlled within 15 days. When the insect population density is high, the control effect of the same dosage is unstable.
(2) The insecticide bifenthrin is used to control vegetable aphids: Apply the pesticide during the emergence period and spray with 3 000 to 4 000 times of 10% bifenthrin EC to control the damage. The residual effect period is about 15 days. This dose can also control a variety of leaf-eating pests, such as cabbage caterpillars, diamondback moths, etc.
Bifenthrin (82657-04-3) controls corn heartworm
How to control corn borer:
1. Prevention and control measures
The prevention and control should be combined in four aspects, namely, the combination of overwintering control and field control; the combination of heart leaf stage control and panicle stage control; the combination of chemical control and biological control;
Control of corn is combined with control of other host crops. Dispose of overwintering straw. In the winter and spring before adults emerge, corn stalks and cobs are treated using methods such as guillotine, rolling, retting, burning, and mud sealing to eliminate overwintering larvae. Choose insect-resistant varieties. Selecting and planting varieties with higher anti-borin content can effectively control the damage caused by corn borer to corn heart and leaves. Change planting times. Increasing the planting area of spring corn and reducing the planting area of summer corn can reduce the damage of corn borer.
2. Chemical prevention and treatment
1. Use 7-100 ml of 20% triazophos emulsifiable concentrate per mu, mix it into poisonous soil and apply it to the heart leaves; triazophos can also be sprayed with 500-800 times of liquid.
3. Use 100-150 grams of 50% fenitrocar wettable powder per mu, mix with 16-20 pounds of fine sand, and apply it to the heart leaves, or fill or spray with 100 grams of fenitrocar diluted 1000 times, or use 90% trichlorid 1500-2000 times of insecticide, or 2500-3000 times of 80% dichlorvos emulsifiable concentrate, and fill each plant with 10-15 ml.
4. Spray with 20% tebufenozide 1300-2300 times, which is highly effective and pollution-free.
5. Use pyrethroid insecticides such as 20% fenpropathrin 1000-2000 times solution, 2.5% lambda-cyhalothrin or deltamethrin 2000-4000 times solution, 40% fenvalerate 4000 times Fill or spray with liquid, or spray with 20% diflubenzuron 1000-2000 times. If diflubenzuron is mixed with pyrethroid insecticides, it can speed up the killing of insects and also control aphids. At the same time, to prevent the development of drug resistance, medications must be rotated.
Bifenthrin (82657-04-3) Precautions
1. The insecticide bifenthrin has not been registered for use on rice, but some local farmers have found that it is very effective in controlling rice leaf rollers when preventing tea pests. If farmers want to use this agent to control non-registered crop pests such as rice, especially in areas where rice and mulberry are mixed, silkworms are easily poisoned, so they must be cautious to prevent heavy losses from silkworm poisoning.
2. The insecticide bifenthrin is highly toxic to fish, shrimps and bees. When using it, keep away from beekeeping areas and do not pour the residual liquid into rivers, ponds and fish ponds.
3. Since frequent use of pyrethroid pesticides will cause pests to develop resistance, they should be used alternately with other pesticides to delay the development of resistance. They are intended to be used 1-2 times per crop season.
4. Pay attention to drug resistance. Bifenthrin, because it has no systemic effect, cannot quickly penetrate into all parts of the crop. Therefore, when spraying, it must be sprayed evenly. In order to avoid pests becoming resistant to the pesticide, bifenthrin is generally combined with other pesticides. The insecticidal effect will be better when used in combination, such as thiamethoxam and imidacloprid.
5. Pay attention to the usage site. Bifenthrin is toxic to bees, fish and other aquatic organisms, and silkworms. When applying the pesticide, you should avoid places near bees, flowering nectar crops, silkworm houses, and mulberry gardens.
Insecticide bifenthrin (82657-04-3) price
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