Emamectin Benzoate – Insecticide

Common name: Emamectin Benzoate
Chemical name:
(4″R)-5-O-demethyl-4″-deoxy-4″-
(methylamino)avermectin A1a + (4″R)-5-O-demethyl-25-de(1-methylpropyl)-4″-deoxy-4″- (methylamino)-25-(1-methylethyl)avermectin A1a

Chemical class: Insecticide
Molecular formula: C54H8NO14C54​H8​NO14​ (Emanectin B1a benzoate) + C54H8NO14C54​H8​NO14​ (Emanectin B1b benzoate)

CAS NO.: 155569-91-8, formerly 137512-74-4 and 179607-18-2

Properties:
A mixture of emamectin B1a ($\ge$90%) and emamectin B1b ($\le$10%), as their benzoate salts. Form White to off-white powder. M.p. 141-146°C. V.p. 4×1033 mPa (21°C).
S.g./density 1.20 (23°C). In water 0.024 g/L (pH 7, 25°C).

Mode of action:
Non-systemic insecticide which penetrates leaf tissues by translaminar movement. Paralyses the Lepidoptera, which stop feeding within hours of ingestion, and die 2-4 dat.

Usage:
It has good control of Lepidoptera such as Imported cabbage worm, Soybean worm, Cotton bolivorm, Tobacco worm, Cabbage armyworm, armyworm, Tobacco cutworm, Apple leaf roller, especially Beet armyworm and Diamondback moth on vegetables, tea, tobacco, fruit trees, cotton etc. For control of Lepidoptera on vegetables, brassicas and cotton, at up to 16 g/ha, and in pine trees, at 5-25 g/ha.

Normal Formulations:
90%/70% Tech, 5.7%/5% WDG, 5% SG, 1.9%/2% EC