Abamectin was first developed by satoshi omura et al., kitasato university in Japan and Merck company in the United States as a class of 16-element macrolide compounds with insecticidal, acaricidal and nematoidal activities, produced by the fermentation of Streptomycesavermitilis in Streptomyces. There are 8 components in natural avermectin, hlavne 4 of which are A1a, A2a, B1a and B2Chemicalbooka, with a total content ≥80%. The four corresponding homologues with smaller proportions are A1b, A2b, B1b and B2b, with a total content of less than 20%. At present, abamectin is used as the main insecticidal ingredient (AvermectinB1a+B1b, where B1a is not less than 90% and B1b is not more than 5%), and the content of B1a is calibrated.
1. Avermectin/Abamectin is the new type of anti-acarid antibiotic, which is distilled after microbial ferment,B1a is the most active content of it and has a very good effect on anti-acarid and other pests, so it has the feature of"broad-spectrum, high efficient, low hangover and easy use". So it is the ideal biological agricultural chemical to current anti-pest.
2. Avermectin/Abamectin to kill pest through eat (mastication insects and stick & suck insects) and touch(avm can enter into body through insects' stoma and claw), it blocks the nerval conduct system of insects to paralysis and dyed.
3. Avermectin/Abamectin can be decomposed by light and microbe, and can be absorbed into the body of plant by its roots, so it is safe to the environment.
