Evaluation of the efficacy duration of different types of pheromone dispensers to lure Ips typographus (L.) (Coleoptera: Curculionidae: Scolytinae)
We presentthe results oftesting10pheromonedispensersused to lure the sprucebark beetle-Ipstypographus(Linnaeus, 1758).A comparisonwas made between boththeir efficacyand also the decrease intheir efficacyafterapplication.DispensersPheagrITand ITEcolureTubusare effectivethroughout the wholeflightactivity ofI.typographus; the efficacy of ITPheagrExtra