John Bazemore/AP Photo
- The hemlock woolly adelgid, native to East Asia, is slowly killing trees from Maine to Georgia. It's among the latest in a line of invasive pests slipping into the US.
- According to some studies, invasive pests are costing the US economy close to $5 billion a year.
- Eventually, many of the ash trees in the eastern US will die due to these insects and new species will take their place.
- While there's nothing wrong with changes in plant and tree species, change is occuring at an alarming rate.
From a distance, the hemlock trees by the Wappinger Creek in Millbrook, New York, look just fine. But forest ecologist Gary Lovett knows better. He pulls back the twigs and exposes some tiny, white fluffy balls.
"These are the protective coating that's created over the top of the hemlock woolly adelgid, a tiny aphid-like insect," said Lovett.
See the rest of the story at Business Insider
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from Business Insider https://ift.tt/2QBcLnH
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