Avermectin is an effective, broad-spectrum insecticide and antibiotic. It has stomach poisoning and killing effect on contact with ticks and insects. The surface of the sprayed leaves can be quickly decomposed and dissipated, and the active ingredient that enters the plant parenchyma can remain in the tissue for a long time and has a conductive effect, and has a Persistent to pests and insects in plant tissues. Mainly used in poultry, domestic and foreign parasites and crop pests, such as parasitic redworm, Diptera, Coleoptera, Lepidoptera and harmful ticks.
Mode of action and characteristics
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Contact, gastric toxicity, strong penetration. Avermectin is a macrolide disaccharide compound. It is a natural product isolated from soil microorganisms. It has contact and gastrointestinal toxicity to insects and acarids and has a weak fumigating effect, and has no systemic effect. However, it has a strong penetrating effect on the leaves of plants, destroys the pests under the epidermis, and has a long-lasting residual effect. It does not kill eggs. Its mechanism of action differs from general insecticides in that it interferes with neurophysiological activities and stimulates the release of r-aminobutyric acid, while r-aminobutyric acid inhibits neurotransmission. nervous system of arthropods, such as ticks, ticks, and insects. The larvae appear paralysed after exposure to the agent, are inactive and do not feed, and die after 2-4 days. It does not cause rapid dehydration of the insect, so its lethal effect is slower. Although it has a direct killing effect on carnivorous and parasitic natural enemies, it does less damage to beneficial insects due to less residual plant surface. It has obvious effects on root node nematodes.
Tutorial
1 Controlling Plutella xylostella and Pieris rapae, using 1000-1500 times 2% avermectin EC + 1000 times salt 1% KM in young larval stage, can effectively control damage and control Plutella xylostella 14 days after The drug is still 90-95%, the control effect on cabbage moth can reach more than 95%.
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2 Control of pests such as yellow moth, leafminer, leafminer, Liriomyza sativae and plant whitefly, 3000-5000 times 1.8% avermectin EC + 1000 times during hatching and larval stages Highly chlorinated spray, the control effect is still more than 90% after 7-10 days.
3 control armyworm, use 1000 times 1.8% avermectin EC, after 7-10 days the drug control effect is still more than 90%.
4 Control leaf mites, alfalfa, sassafras and various resistant ticks of fruit trees, vegetables, cereals and other crops, using a spray of avermectin 1.8% by 1.8% emulsion .
Abamectin is effective against roundworms, insects and aphids and is used to treat nematodes, ticks and parasitic diseases of livestock and poultry.
Prevent
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1. Take protective measures when applying medicine, wearing a mask, etc.
2. Toxic to fish, avoid polluting water sources and ponds.
3. High toxicity to silkworms, 40 days after spraying mulberry leaves, also has the effect of killing poisonous silkworms.
4. Toxic to bees, not applicable during flowering.
5. The final application is 20 days from the harvest.
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