Two years ago I wrote about an exotic insect pest called hemlock woolly adelgid and its relentless assault on the East's hemlock trees, hugely important in keeping trout waters clean and cold during warmer months. Now two species of tiny predatory fly are being released to feast on adelgids ... which naturally prompts concerns about the potential ramifications the flies themselves will cause to their adopted ecosystems. Read the article in today's Washington Post and my own piece in Earth Island Journal.
William H. Funk
I'm a freelance writer focusing on natural history, conservation, and environmental law, policy and politics.