The impact of sanitary cutting on the protected and/or endangered bark and wood boring beetles in coniferous forests (Coleoptera)

Abstract

Bark and wood boring beetles were studied in 25 sample areas typical of Hungarian conifer stands. The results show that for establishing of different species the decomposition phase of wood is decisive. Species that cause forest health protection problems are related to wood that is in the first phase of decomposition (dying or recently felled wood). Such species include the pine weevil (Pissodespint) and the pine shoot beetle (Tomicus piniperda) occurring on Scots pine and on black pine. On Norway spruce, the eight-spined spruce bark beetle (Ips typographus) and the chalcograph spruce bark beetle (.Pityogenes chalcographus) are dominant and among the species that cause forest health protection problems. On Pinus species, a lot of long-horn beetle species occur, and plenty of individuals emerge. Among them several species, such as the timberman longhorn beetle (Acanthocinus aedilis), are protected. In the case of Norway spruce the amount of emerging longhorn beetles was insignificant, and no protected species were included. The scolytids Carphoborus minutus (Fabricius, 1801) and Ips amitinus (Eichhoff, 1871) are recorded from Hungary for the first time.