Device for dispensing bark beetle pheromone in a controlled...

A - Human Necessities – 01 – N

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Details

A01N 25/34 (2006.01) A01M 13/00 (2006.01) A01N 37/06 (2006.01) A01N 43/90 (2006.01) A01P 19/00 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2588346

The invention relates to a device for dispensing bark beetle pheromone in a controlled manner. Said device consists of a plastic container comprising one or more sealed chambers, each containing a liquid pheromone that is composed of 2-ethyl-1,6-dioxaspiro[4,4]nonane, 2,4-decadiene carboxylic acid methyl ester and at least one alcohol selected from 2-methyl but-3-en-2-ol and 2- methylbut-3-in-2-ol, at least 50 % of the surface of the walls that form the chambers having a wall thickness ranging between 0.1 and 1 mm. At least said surfaces consist of a plastic material that is an uncoated vinyl acetate ethylene copolymer with a vinyl acetate content ranging between 10 and 17 wt. %. The invention also relates to a method for combating and controlling the swarming behaviour of the species Pityogenes chalcographus, which is also known as the six-toothed spruce bark beetle.

L'invention concerne un dispositif permettant de dégager de manière commandée les phéromones des chalcographes, se présentant sous la forme d'un récipient formé dans une matière synthétique, ce dernier présentant une ou plusieurs chambres fermées qui contiennent chacune une phéromone liquide, comprenant du 2-éthyl-l,6-dioxaspiro[4,4]nonan, 2,4-acide carboxylique décadiène-méthylester et au moins un alcool sélectionné parmi le 2-méthylbuténol-3-2 ou le 2-méthylbutinol-2-3. Au moins 50 % de la surface des parois formant les chambres présente une épaisseur comprise entre 0,1 et 1mm et la matière synthétique formant les chambres est un copolymère non revêtu d'éthylène-vinylacétate présentant une teneur en vinylacétate comprise entre 10 et 17 % en poids. L'invention concerne également un procédé permettant de lutter et de réguler le comportement d'essaimage de l'espèce Pityogenes chalcographus, laquelle peut être également appelée chalcographe ou petit bostrychede l'épicéa à six dents.

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