Agents for control of codling moth in fruit orchards

Details Agents for control of codling moth in fruit orchards Agents for control of codling moth in fruit orchards

A - Human Necessities

01

N

A01N 49/00 (2006.01) A01N 37/40 (2006.01) A01N 43/12 (2006.01) A01P 17/00 (2006.01) A01P 19/00 (2006.01)

Patent

CA 2583122

The invention provides a method for identifying volatile insect repellents and/or attractants released from their non-volatile glycosides by the action of -glucosidase on plant tissue extracts. By this method, geraniol was identified as codling moth repellent and methyl salicylate, (2R, 5R)- theaspirane, and (2S, 5R)-theaspirane, and to a lesser extent linalool and benzyl alcohol as codling moth attractants. The invention provides compositions comprising said repellent and attractants and methods for control of codling moth in fruit, preferably apple, orchards.

L'invention concerne un procédé pour identifier des substances répulsives et/ou attractives volatiles pour insectes, qui sont libérées par des glycosides non volatils par l'action de la .beta.- glucosidase sur des extraits tissulaires végétaux. Ce procédé a permis d'établir que le géraniol est une substance répulsive pour la carpocapse des pommes et des poires, tandis que les composés salicylate de méthyle, (2R, 5R)-théaspirane, et (2S, 5R)-théaspirane, et dans une moindre mesure, le linalol et l'alcool de benzyle constituent des substances attractives pour la carpocapse des pommes et des poires. Cette invention se rapporte en outre à des compositions comprenant lesdites substances répulsives et attractives, et à un procédé pour lutter contre la carpocapse des pommes et des poires dans les vergers, de préférence dans les pommeraies.

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