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could increase the proportion of adults overwintering in forest litter and thereby increase the threat of larch infestation in spring.
Finally, larch harvested by modern harvesters can be colonized by I. cembrae—or at least those parts having thick bark can be colonized—and appropriate control (bark removal) is necessary. When thinning wood with bark is left in the stand, infestations may become severe; to prevent this, foresters should create spatial or temporal gaps between harvesting and thinning (Watzek and Niemeyer 1996).
The investigation was supported by project IGAFLD201121 and CIGA20124302, Czech University of Life Sciences Prague.
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