The Hemlock Woolly Adelgid (HWA) is an aphid-like insect that feeds ... that will crawl to a needle to aestivate for the next summer, thus repeating the life cycle. In the U.S., all HWA reproduction ...
The woolly apple aphid (Eriosoma lanigerum ... back to elms to overwinter eggs and start the cycle again. In the absence of ...