Woodland Health:Ambrosia Beetles: The Good, The Bad, and The Ugly!

摘要

On a recent trip back to my native Pacific Northwest I was remindedof one of my favorite bugs as I stood on the recently fallen stem of a once mighty Douglas-fir. I was on the Olympic Peninsula, across the valley from the world's largest Doug fir on a stem of about 8 ft. in diameter and at my feet were thousands of little piles of white sawdust... Ambrosia beetles. I've always been fascinated with these beetles andtheir amazing biology, the good (if you're an entomologist), but as I became aware over time they can cause significant economic loss, the bad, and now some invasive species threaten a significant amount of southern California's forest trees, the ugly.