balsam twig aphid
: a common aphid (Mindarus abietinus) of the northern United States and Canada feeding chiefly on spruces and balsam fir and often producing much honeydew
Useful english dictionary. 2012.
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Christmas tree pests and weeds — An entomologist checks Scots Pine for pine shoot beetles at a Christmas tree farm near East Lansing, Michigan. Pine and fir trees, grown purposely for use as Christmas trees, are vulnerable to a wide variety of pests, weeds and diseases. Many of… … Wikipedia