DEVICE FOR CONTROLLED EVAPORATION OF POROMON KOROED-GRAVER

摘要

The application describes a device designed for controlled evaporation of a pheromone bark beetle-engraver in the form of a container molded from a polymer material with one or more closed chambers, each of which is filled with a liquid pheromone containing 2-ethyl-1,6-dioxaspiro [4,4] nonane, 2,4-decadienocarbolic acid methyl ester and at least one alcohol selected from 2-methylbut-3-en-1-ol and 2-methylbut-3-in-1-ol, forming at least a wall or chambers of the wall at least 50% of their total area have a thickness of 0.1 to 1 mm and at least n and sections of this thickness are made of a polymeric material, which is an uncoated ethylene vinyl acetate copolymer with a vinyl acetate content of 10 to 17 wt.%. The application also describes a method of controlling congestion and controlling congestion of beetles of the species Pityogeneschalcographus, also commonly referred to as engraving bark beetles or small six-toed spruce or pine bark beetles.