aerial bark wood beetle drone pest ips typographus dead spruce tree infested and attacked by the european spruce

ips spruce calamity aerial pest bark drone shot quadcopter video dron flying fly flight show dead trees larva bast opening part hole detail closeup infestation orbiting deforestation view forests stump tree beetle chop infested attacked cutting smallreed typographus wood caused planting stands europe scolytinae pupa insects larvae cut down logging