Common name: Abamectin
Chemical name: 5-O-demethylavermectin A1a (i)
mixture with 5-O-demethyl-25-de(1-methylpropyl)-25-(1-methylethy)lavermectin A1a (ii)
Chemical class: Insecticide
Molecular formula: Ca2H7aO4a (avermectin B1a) +
Ca2H7bO4c (avermectin B1b)
CAS NO.: 71751-41-2(abamectin);
65195-55-3 (I); 65195-56-4 (ii)
Properties:
Abamectin is a mixture containing>80% avermectin B1a (i) and <20% avermectin B1b (ii). Colourless to pale yellow crystals.. M.p.161.8-169.4°C (decomp.). V.p.<3.7×107 mPa (25°C). S.g./density 1.18 (22°C). In water 7-10 µg/L (20°C). In foluene 350, acetone 100, isopropanol 70, chloroform 25, ethanol 20, methanol 19.5, n-butanol 10, cyclohexane 6 (all in g/L, 21°C).
Mode of action:
Insecticide and acaricide with contact and stomach action. Has limited plant systemic activity, but exhibits translaminar movement.
Usage:
Control of motile stages of mites, leaf miners, suckers, Colorado beetles, etc. on ornamentals, cotton, citrus fruit, pome fruit, nut crops, vegetables, potatoes, and other crops. Application rates are 5.6 to 28 g/ha for mite control, 11 to 22 g/ha for control of leaf miners. Also used for control of fire ants.
Normal Formulations:
95%Tech, 1.8%EC, 2.2%EC, 3.6%EC, 5.4%EC,8%SC
