We just got back from a road trip to Vermont and kept seeing purple triangles hanging from trees in various places along Route 89 and a few other smaller roads along the way. We thought it was a tourism promotion or something. Here is the very interesting answer:
http://www.vermontagriculture.com/ARMES/plantindustry/caps/VermontEABTraps.html
It was not what I was expecting, but they are being proactive.
http://www.vermontagriculture.com/ARMES/plantindustry/caps/VermontEABTraps.html
It was not what I was expecting, but they are being proactive.