aerial bark wood beetle drone pest ips typographus dead spruce tree, planting of fast-growing white birch trees betula

ips fastgrowing planting white birch trees betula pendula silver spruce calamity aerial pest bark drone shot warty european video dron fast growing flying fly flight show dead bast opening hole closeup infestation orbiting deforestation forests stump tree beetle chop infested attacked cutting smallreed typographus wood scolytinae insects larvae cut down