About Fred Hain

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So far Fred Hain has created 33 blog entries.

Pennsylvania state tree under severe attack, prognosis unclear

That’s due to the one-two punch of two highly destructive insects: hemlock woolly adelgid (HWA) — an aphid-like insect — and elongated hemlock scale (EHS) — an armored insect. Both are foreign invaders: HWA from Asia and EHS from Japan. Because of this, neither has any natural predators here, so they are free to infect [...]

By | August 25th, 2016|News|Comments Off on Pennsylvania state tree under severe attack, prognosis unclear

Mountain Xpress highlights Hemlock Restoration Initiative

Since its accidental arrival here from southern Japan about two decades ago, the hemlock woolly adelgid has killed hundreds of thousands of trees, devastating some forests in the region. Exact numbers are hard to come by, says Margot Wallston, statewide coordinator for the Hemlock Restoration Initiative, but hemlocks “are a major player in our forested [...]

By | August 8th, 2016|News|Comments Off on Mountain Xpress highlights Hemlock Restoration Initiative

Tree-killing Hemlock Woolly Adelgids Hitch Rides on Birds

At first glance, you might not think these little bits of fluff could pose much of a threat. But, like Star Trek’s troublesome tribbles, hemlock woolly adelgids (Adelges tsugae) can quickly multiply and wreak havoc. When these tiny sap-sucking insects were introduced to the forests of the Northeastern United States, they lacked an effective predator [...]

By | August 2nd, 2016|News|Comments Off on Tree-killing Hemlock Woolly Adelgids Hitch Rides on Birds