Publications by authors named "Stephen D Cockfield"

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Natural enemies of woolly apple aphid (Hemiptera: Aphididae) in Washington State.
Lessando M Gontijo, Stephen D Cockfield, Elizabeth H Beers

Environ Entomol· December 2012

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Seasonal phenology of woolly apple aphid (Hemiptera: Aphididae) in Central Washington.
Elizabeth H Beers, Stephen D Cockfield, Lessando M Gontijo

Environ Entomol· April 2010

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Relative availability of nitrogen in host plants of invertebrate herbivores: three possible nutritional and physiological definitions.
Stephen D Cockfield

Oecologia· October 1988

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