Avermectin Fermentation Antibiotics Insecticide

Common name: Avermectin

Chemical name:

abamectin (combination of avermectin B1a and avermectin B1b)

Molecular formula: C49H74O14

Structural formula: 

Molecular weight: 887.11

CAS No. : 71751-41-2

Product description：

It can kill mites and insects, but not eggs. The mechanism of action is different from the general insecticide is to interfere with neurophysiological activities, stimulate the release of γ -aminobutyric acid, and aminobutyric acid on arthropod nerve conduction inhibition. Adult mites, nymphs and insect larvae show paralysis after contact with avermectin, do not move or feed, and die in 2 ~ 4 days. The lethal effect of abamectin is slow because it does not cause rapid dehydration of insects. Although abamectin can directly kill predatory insects and parasitic natural enemies, it has little damage to beneficial insects due to the small amount of residue on plant surface. Abamectin is adsorbed by soil in the soil and will not move, and is decomposed by microorganisms, so it has no cumulative effect in the environment and can be used as an integral part of comprehensive control. It is easy to prepare and can be used by pouring the preparation into water and stirring a little. It is also safer for crops.

Physical and chemical properties:

The appearance is light yellow to white crystalline powder, tasteless. M.p. 155-157 ℃, vapor pressure 2×10^-7Pa, relative density 1.16(21℃). Solubility at 21℃ : toluene 350g/L, acetone 100g/L, isopropyl alcohol 70g/L, chloroform 25g/L, ethanol 20g/L, methanol 19.5g/L, cyclohexane 6g/L, kerosene 0.5g/L, water 10μg/L. Distribution coefficient 9.9×103. It is stable under normal conditions and does not hydrolyze at pH 5 ~ 9. 

Usage：

To nematodes, insects and mites were killed, for the treatment of livestock and poultry nematodes, mites, and parasitic insects disease use for, apple, citrus, vegetables, cotton, tobacco, soybeans, tea and other pests of crops has good control effect and delay the drug resistance purpose for on a variety of vegetables, fruit trees, cotton insect pests and prevention and control of spider mites.