Abamectin 5% SC
Common name abamectin (BSI, E-ISO, ANSI); abamectine ((f) F-ISO)
IUPAC name (10E,14E,16E)-(1R,4S,5′S,6S,6′R,8R,12S,13S,20R,21R,24S)-6′-[(S)-sec-butyl]-21,24-dihydroxy-5′,11,13,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[188.8.131.52,8.020,24]pentacosa-10,14,16,22-tetraene-6-spiro-2′-(5′,6′-dihydro-2′H-pyran)-12-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-α-L-arabino-hexopyranosyl)-3-O-methyl-α-L-arabino-hexopyranoside (i) mixture with (10E,14E,16E)-(1R,4S,5′S,6S,6′R,8R,12S,13S,20R,21R,24S)-21,24-dihydroxy-6′-isopropyl-5′,11,13,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[184.108.40.206,8.020,24]pentacosa-10,14,16,22-tetraene-6-spiro-2′-(5′,6′-dihydro-2′H-pyran)-12-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-α-L-arabino-hexopyranosyl)-3-O-methyl-α-L-arabino-hexopyranoside (ii) (4:1)
Chemical Abstracts name 5-O-demethylavermectin A1a (i) mixture with 5-O-demethyl-25-de(1-methylpropyl)-25-(1-methylethyl)avermectin A1a (ii) Other names avermectin B1
CAS RN [71751-41-2] abamectin; [65195-55-3] (i); [65195-56-4] (ii)
Abamectin Biochemistry Acts by stimulating the release of γ-aminobutyric acid, an inhibitory neurotransmitter, thus finally activating chloride channels. See M. J. Turner & J. M. Schaeffer in Ivermectin and Abamectin, p. 73.
Abamectin Mode of action Insecticide, acaricide and nematicide with contact and stomach action. Has limited plant systemic activity, but exhibits translaminar movement.
Abamectin Uses 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 nematodes by seed treatment, and of fire ants. Phytotoxicity May be phytotoxic to pome fruit when mixed with captan. F
Abamectin Compatibility Not compatible with captan.