Emamectin benzoate Biochemistry Acts by stimulating the release of γ-aminobutyric acid, an inhibitory neurotransmitter, thus finally activating chloride channels. Use Control of sucking insects, including rice-, leaf- and plan thoppers, aphids, thrips, whitefly and lepidoptera on vegetables, brassicas, cotton. rice, cereals, maize, sugar beet, potatoes, citrus fruit, pome fruit and stone fruit.