01986nas a2200193   4500008004100000020001400041245010000055210006900155260000900224300001000233490000700243520132900250653001701579653002901596100001301625700001601638700001601654856012201670       2011                        eng d  a1212-483400aCambioxylophagous fauna developing on logging residues of blue spruce (Picea pungens Engelmann)0 aCambioxylophagous fauna developing on logging residues of blue s  c2011  a24-330 v573 aCutting down 20- to 30-years-old trees of blue spruce (Picea pungens Engelm.) (October, May) and cross-cutting them to sections of different volume (0.5[long dash]75 dm3) under conditions of half-shade x open area resulted in a potential food offer for cambiophages. Ips amitinus (Eichh.) and Pityogenes chalcographus (L.) reached the higher frequency of occurrence on sections placed in the open area than in half-shade and on stems felled in the autumn season than in the spring season. Dryocoetes autographus (Ratz.) was markedly profiled on sections in half-shade with the gradual desiccation of phloem. P. chalcographus preferring open areas occurred on branches being accompanied by Cryphalus abietis (Ratz.), which attacked branches located in half-shade. On stems of sections from both autumn and spring felling, one generation of I. amitinus developed, however, on autumn sections, the 2nd generation developed unsuccessfully on the original nutritive material. P. chalcographus completed the development of one generation on stems and branches from autumn felling. On the spring material, the invasion was delayed and a part of wintering larvae did not complete their development. Logging residues of P. pungens were available for the development of I. amitinus and P. chalcographus during one growing season only.10aIps amitinus10aPityogenes chalcographus1 aKula, E.1 aKajfosz, R.1 aPolivka, J.  uhttps://weevil.myspecies.info/cambioxylophagous-fauna-developing-logging-residues-blue-spruce-picea-pungens-engelmann