Пятиязычный словарь названий животных. Насекомые. — М.: РУССО. Под редакцией д-ра биол. наук., проф. Б. Р. Стригановой. 2000.
balsam twig aphid — noun : 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
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
