Why is Abamectin an evergreen tree in insecticide?
What is Abamectin?Abamectin is a new type of antibiotic broad-spectrum high-efficiency insecticide and acaricide. It has stomach poisoning effect, contact killing effect, and endosmosis effect. It can kill leaf miner pests, but it has no ovicidal effect. The agent is a kind of nerve agent, which kills pests by interfering with the physiological activities of the pest nerves. It is different from the mechanism of action of common insecticides, so it will not produce cross-resistance with common insecticides. It is suitable for the prevention and treatment of organophosphorus Insecticides or pests that have developed resistance to pyrethroid insecticides.
The mechanism of action of abamectin is to interfere with the signal transmission of the nervous system of the pest. It is mainly stomach poisoning and contact killing. After the pest is poisoned, it will appear paralyzed, weakened in mobility, and refuse to eat within a few hours. , and eventually the pests will die because they cannot eat or breathe. Generally, there will be a peak of dead insects in 2-4 days.
Features of Abamectin
1. Wide insecticidal spectrum and wide application. Abamectin can be used in various crops such as rice, vegetables, flowers, citrus, fruit trees, cotton, and ornamental plants. It can be used in various ways, such as spraying, root irrigation, granule spraying and seed coating Seed treatment can be used to control aphids, thrips, mites, diamondback moth, cabbage caterpillar, leaf roller, borer, leafminer and underground nematodes.
There are 8 components in natural abamectin, they exist at the same time, but the content ratio is different. These 8 components are further divided into 4 categories, namely A1, A2 and B1, B2, and each of these 4 categories is further divided into two subcategories, such as A1a, A1b, B1a, B1b, etc., among which the most active It is category B1, and it is also the main component of the registration of abamectin preparations currently on the market.
For example, we often say that the content of abamectin with a content of 1.8% means that the content of B1 is 1.8%. However, according to recent research, it is B2 that has the highest activity against nematodes. Abamectins from different manufacturers The content of B2 in the element is different, so the effect on killing nematodes is also very different.
2. It has contact and stomach poisoning effects.
Abamectin is mainly gastric toxicity and has certain contact toxicity. But it should be noted that avermectin is permeable but not systemic, so when using it, spray it as evenly as possible, and it is best to spray it on all parts of the crop; for those with thicker wax on the surface of stems and leaves It is best to add additives to crops in the mesoplasmic layer to improve its adhesion and permeability; also because there is no systemic property, when the pests bore into the crop stems or fruits, abamectin is used alone for control , the effect is often not very ideal, it is best to use other systemic insecticides, or mix them with systemic insecticides.
3. Toxicity is affected by temperature.
According to the test data, when the temperature is around 22°C, the toxicity of the same content of avermectin is roughly equivalent to that of emamectin benzoate, while above 22°C, the toxicity of the same content of abamectin is significantly lower than that of emamectin benzoate, especially When the temperature is above 25°C, the toxicity of emamectin emamectin increases sharply, even by more than 1000 times, which is far from being comparable to abamectin. For insect pests, the effect of using abamectin is not as good as emamectin benzoate.
Applications of Abamectin
Abamectin is a sixteen-membered macrolide with strong insecticidal, acaricidal and nematicidal activities. Broad-spectrum, high-efficiency, and safe dual-use antibiotic for agriculture and livestock. It has stomach poisoning and contact killing effects, but cannot kill eggs. Its mechanism of action is to interfere with neurophysiological activity and affect cell membrane chloride conduction, and GABA is its site of action. When the drug stimulates the site of action, it blocks the transmission process of motor nerve information, so that the signal of the central nervous system of the pest is continuously received by the motor neuron, and the pest quickly paralyzes, refuses to eat, slows down or does not move within a few hours, because it does not cause Insects dehydrate quickly, so the lethal effect is slow, and generally die after 24 days.
It is used to control various pests such as diamondback moth, cabbage caterpillar, armyworm, and flea beetle on vegetables, fruit trees and other crops, especially for pests that are resistant to other insecticide. For vegetable pests, the dosage is 10-20g per hectare, and the control effect is over 90%; for the control of citrus rust mite, it is 13.5-54g per hectare, and the residual effect period is 4 weeks (if mixed with mineral oil, the dosage is reduced to 13.5-27g , and the residual effect period is extended to 16 weeks); control cotton cinnabarinus spider mite, tobacco armyworm, cotton bollworm and cotton aphid all have very good control effect.
It has the effect of killing nematodes, insects and mites, and is used to treat nematodes, mites and parasitic insect diseases of livestock and poultry
It has a good control effect on pests of citrus, vegetables, cotton, apples, tobacco, soybeans, tea trees and other crops and delays drug resistance.
How to use Abamectin
1. For the control of vegetable diamondback moth, beet armyworm and Spodoptera litura, 30-40ml of 1.8% abamectin EC can be used per mu, mixed with water and sprayed evenly.
2. For the control of fruit tree aphids, red spiders and gall mites, 30-40 ml of 1.8% abamectin EC can be used per mu, mixed with water for spraying.
3. To control pests such as aphids, scale insects and thrips in flowers, 30-50 ml of 1.8% abamectin EC can be used per mu, mixed with water for spraying.
4. For the control of rice leaf roller, 30-45 ml of 2.2% abamectin emulsion can be used per mu, mixed with water and sprayed evenly.
Abamectin prevention and control object:
①. Harmful mites: such as chili tea yellow mite, apple hawthorn spider mite, peach tree spider mite, persimmon spider mite, peanut red spider mite, wheat red spider mite, and corn spider mite crops, each sprayer (15-20 kg of water) uses a The active ingredient of vermectin is about 0.5-1 gram.
②. Pear psyllid: At the peak hatching stage of pear psyllid, spray 2000 times liquid of abamectin 3.2% suspension concentrate, and convert the amount of avermectin mixed with water according to this ratio.
③. Plutella xylostella: Cabbage, Chinese cabbage, Shanghai green, mustard and other green leafy vegetables in the initial stage of Plutella xylostella, use 0.5-1 g of the active ingredient of abamectin per sprayer (15-20 kg of water). The opening of the cabbage leaves mentioned at the beginning of this article, combined with the fact that most of the temperature in the north is suitable for the occurrence of diamondback moth, so the editor judges that cabbage is a hazard of diamondback moth, and recommends abamectin for prevention and control.
④. Rice leaf roller: For the young stage of rice leaf roller, use 0.5-1 g of the active ingredient of avermectin per sprayer (15-20 kg of water), and spray evenly.
⑤: Root-knot nematode: When preparing the soil for vegetables in greenhouses, use more than 60 grams of active ingredients of abamectin per mu, which can be mixed with sand and soil to scatter the ground; it can also be mixed with abamectin when the vegetables are transplanted and seedlings are washed. Other crops such as ginger, pepper, peanuts and other crops that are harmed by root-knot nematodes can be controlled with abamectin, and the effective dosage per mu is more than 60 grams.
⑥. Liriomyza: Luffa, kidney beans, cabbage and other crops that are vulnerable to Liriomyza, use 0.5-1 g of the active ingredient of abamectin per sprayer (15-20 kg of water), and spray evenly.
⑦. Leaf miner: In recent years, wheat leaf miner has occurred more and more plots, and each sprayer (15-20 kg of water) uses 0.5-1 g of the active ingredient of abamectin and sprays evenly.
⑧. Leaf miner of fruit trees: Leaf miner of peach trees, apple trees and other fruit trees in early spring will be harmed by the moth of leaf miner. In the early stage of occurrence, 3.2% abamectin suspension concentrate 3000 times liquid is evenly sprayed to control it. Other contents and dosage forms are converted according to this ratio .
⑨. Cabbage caterpillar: green leafy vegetables, peppers, peanuts and other crops that are harmed by cabbage caterpillar, use 0.5-1 g of the active ingredient of abamectin per sprayer (15-20 kg of water), and spray evenly.
In addition, abamectin can also control whitefly and flea beetle. Use 0.8-1 g of abamectin active ingredient per sprayer (15-20 kg of water) and spray evenly.
Abamectin use and precautions
1. It is easy to decompose when exposed to light. Abamectin will decompose within 4-6 hours in strong light and oxygen environment, so Abamectin must be kept away from light and airtight when storing; when using, try to choose morning or evening, Avoid spraying under strong sunlight at noon on sunny days.
2. Abamectin is poisonous to silkworms, bees, fish, etc. Be sure to pay attention to safety when using it.
3. Although Abamectin has a wide insecticidal spectrum and is often used to kill mites and nematodes, no matter what kind of pests it kills, it is not recommended to use it alone. It is best to use it with other insecticides and insecticides Mixing with acaricides, or using their complexes, such as Avi-chlorantraniliprole, Avi-methafen, Avi-imidacloprid, Avi-etoxazole, Avi-spirofen, Avi- Thiazophosphine, Paecilomyces lilacinus, etc. Not only can it reduce the resistance of pests, improve the quick-acting performance of insecticide, but also achieve better control effect.
price of Abamectin
Under normal circumstances, the price of abamectin, a pesticide and insecticide, will be affected by raw materials, market environment, research and development costs, etc. If you want to know the latest price of the pesticide abamectin you need, please contact us to initiate an inquiry.
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