The Oregon Department of Agriculture plans to spray an organic insecticide across thousands of acres of North Portland and Vancouver, Washington, over the next month to eradicate invasive gypsy moths.
The state found three Asian gypsy moths and two European gypsy moths in traps last year in North Portland and across the Columbia River in Vancouver. According to ODA spokesman Bruce Pokarney, the moths pose serious risks to trees and forests, and so far the state has managed to prevent them from taking hold.
“It’s a tremendous defoliator,” he said. “In the caterpillar stage, the moth eats leaves right off the trees. The Asian variety is of more concern to us because it has a wider appetite. It actually eats coniferous trees. And unlike the European gypsy moth, the female Asian gypsy moth flies. She can lay a bunch of eggs, get up and fly several miles and then lay some more eggs. So, you can see how that would lead to a much more rapid and widespread infestation if it’s not taken care of early.” For the full article click here
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