来自MSN7 个月
Norway spruce in Finland is susceptible to European spruce bark beetle damage especially ...
In Finland, the European spruce bark beetle prefers mature Norway spruce forests close to recent clear-cut sites, a new study from the University of Eastern Finland finds. Conducted in an effort ...
BBC2 年
Forestry Commission introduces bark Beetle pest controls
The Ips typographus, or larger eight-toothed European spruce bark beetle, is being blown over from France and damaging spruce trees. Pheromone traps are being used, and the commission is ...