01962nas a2200157   4500008004100000020001400041245017900055210006900234260000900303300001200312490000700324520128500331653002901616100002401645856013501669       2012                        eng d  a0967-087400aFeeding habits of Pityogenes chalcographus (L.) (Coleoptera: Scolytinae) on Norway Spruce (Picea abies) L. (Karst.) logging residues in wind-damaged stands in southern Poland0 aFeeding habits of Pityogenes chalcographus L Coleoptera Scolytin  c2012  a121-1300 v583 aThe effect of deposition of logging residues (e. g. cut branches and tree tops) on infestation density and reproductive efficiency of the smaller European (six-toothed) spruce bark beetle, Pityogenes chalcographus (L.) (Coleoptera: Scolytinae), was studied on Norway Spruce (Picea abies) L. (Karst.) stands in southern Poland. It was found that such materials, originating from windbreaks and windfalls and spread loosely over the forest floor, were more readily infested by P. chalcographus than materials gathered in piles. However, the beetles achieved a significantly higher reproductive efficiency (number of new generation beetles per each parent individual) on branches in piles than on those spread loosely. In piles, the P. chalcographus infestation density, measured as the total number of individuals per square decimetre of bark area, and reproductive efficiency varied, depending on the location of the branches in a pile. The most favourable breeding conditions occurred in the middle layer of a pile. It was also found that at different infestation densities the method and placement of woody debris deposition did not affect the number of beetles that emerged. These results are discussed in the context of using logging residues as natural traps for bark beetles.10aPityogenes chalcographus1 aKacprzyk, Magdalena  uhttps://weevil.myspecies.info/feeding-habits-pityogenes-chalcographus-l-coleoptera-scolytinae-norway-spruce-picea-abies-l-karst-lo