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The North American species of Psylla from willow, with descriptions of new species and notes on biology (Homoptera: Psyllidae)

D. D. Jensen

Hilgardia, 1951, vol. 20, issue 16

Abstract: This paper deals with the taxonomy and biology of the fourteen species of Psylla known to breed on willow, and seven believed to breed on willow, in North America.

Keywords: Environmental; Economics; and; Policy (search for similar items in EconPapers)
Date: 1951
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