Insecticidal composition and method for the use thereof

A - Human Necessities – 01 – N

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A01N 57/28 (2006.01) A01N 43/40 (2006.01) A01P 7/04 (2006.01)

Patent

CA 2336716

An insecticidal composition includes (1) at least one compound of formula (I) wherein R1 is bromine, chlorine, methyl, or ethyl, R2 is bromine, chlorine, or ethyl, R3 is hydrogen, halogen, or trifluoromethyl, X is -O-, -S-, or -NH-, and n is 2, 3, or 4, and (2) at least one compound of formula (II) wherein R and R1 independently are an alkyl, alkenyl, or alkynyl group containing up to 6 carbon atoms, R2 is hydrogen, an alkyl group containing 1 to 18 carbon atoms, a cycloalkyl group containing 3 to 8 carbon atoms, an alkenyl group containing 2 to 18 carbon atoms, or an alkylnyl group containing 3 to 18 carbons atoms, R3 is hydrogen or an alkyl group containing 1 to 6 carbon atoms, and Y is -O- or -S-. A method for killing insects such as the tobacco budworm and other Lepidopteran pests of cotton includes applying an insecticidally effective amount of such a composition to an area to be treated.

La présente invention concerne une composition insecticide comprenant : (1) au moins un composé de la formule (1) dans laquelle R1 est brome, chlore, méthyle ou éthyle, R2 est brome, chlore ou éthyle, R3 est hydrogène, halogène ou trifluorométhyle, X est -O-, -S-, ou -NH-, et n est égal à 2, 3 ou 4 ; et (2) au moins un composé de la formule (II) dans laquelle R et R<1> sont, indépendamment, un groupe alkyle, alcényle ou alcynyle renfermant jusqu'à 6 atomes de carbone, R<2> est un hydrogène, un groupe alkyle renfermant entre 1 et 18 atomes de carbone, un groupe cycloalkyle renfermant entre 3 et 8 atomes de carbone, un groupe alcényle renfermant entre 2 et 18 atomes de carbone ou un groupe alcynyle renfermant entre 3 à 18 atomes de carbone, R<3> un hydrogène ou un groupe alkyle renfermant entre 1 et 6 atomes de carbone, et Y est -O- ou -S-. L'invention se rapporte également à un procédé permettant d'éliminer des insectes tels que la noctuelle verdoyante et autres lépidoptères nuisibles au coton, qui consiste à appliquer une quantité efficace comme insecticide de la composition sur la zone à traiter.

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