bark beetle pest deciduous oak forests european infested drought dry attacked xyleborus monographus ambrosia, scolytus

ambrosia attacked bark beech beetle borer burrow calamity caused chop cut cylindrus czech deciduous down drought dry ecological environment europe european floodplain forest forests global infested insects intricatus ips larvae mature monographus oak pest phloem pinhole platypus scolytinae scolytus spruce stump tree trees treesforests typographus under warming water withered xyleborus