Ökologische Bewertung von Räuber-Beifängen in Borkenkäfer-Lockstoffallen

Research on Parasitoids and Predators of Scolytidae – A Review

“…Since many predators and parasitoids react to the same semiochemicals as their prey or host, commercial pheromone traps may trap out significant amounts of these beneficials (Nebeker et al, 1984). For pheromone traps against bark beetles it was calculated that the Nemosoma elongatum individuals caught in the traps would have eaten a multiple of the number of bark beetles caught in these traps (Baier 1991;Wigger 1993;Schumacher and Pohris 2000). Optimised blends of semiochemicals and application times may minimise such detrimental effects (Raffa 1991;Aukema et al a 2000).…”