What are they?

PURPLE, THREE-SIDED traps resembling a box kite, such as this one in Middlebury, have gone up in ash trees throughout Vermont this spring as part of a government surveillance program. The traps are baited with a lure to attract the insects and are coated with a glue that captures the pests but is non-toxic to humans and pets. The emerald ash borer is a non-native, wood-boring beetle that has killed tens of millions of ash trees in the eastern U.S. and Canada. It attacks only ash trees.
Independent photo/Trent Campbell

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