The Value of Christmas Trees

"...there is no reason why the joy associated with the Christmas evergreen may not be a means of arousing in the minds of children an appreciation of the beauty and usefulness of trees; and keen appreciation of the beauty and usefulness of trees is a long stop toward the will to plant and care for them (Arthur Sowder, US Forest Service, 1949)."

Monday, June 7, 2010

Another Scale

In one Christmas tree field near Jefferson, Bryan Davis kept seeing a different kind of scale. We finally sent them in, and they were identified as the hemlock scale (Abgrallaspis ithacae). This scale is native to the US. It is closer to target shaped instead of elongate. It is not reported as being damaging to trees. The following image is from IPM Images. We will be monitoring this site to see if these scales develop into a problem.
hemlock scale, Abgrallaspis ithacae  (Hemiptera: Diaspididae)

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