Grobler, J.H.
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The fungus Empusa aphidis Hoffman parasitic on the woolly pine needle aphid, Schizolachnus pini-radiatae (Davidson).
Grobler, J.H.; MacLeod, D.M.; DeLyzer, A.J.
Year: 1962
Catalog ID: 37745
Issued by: Great Lakes Forestry Centre
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