Просмотр с тегами: Protection
Pest management to protect forests
on Птн, 20 Мар 2015, 14:48
Mountain pine beetle (Dendroctonus ponderosae) has destroyed about 16 million ha of forests and 675 million cubic metres of timber in British Columbia and east of the Rockies in Alberta. With care, timber can be treated to eliminate pests, permitting ...