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The Influence of Alfalfa on the Abundance of the Pea Aphid on Peas Grown for Canning in Southeastern Washington
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The Influence of Alfalfa on the Abundance of the Pea Aphid on Peas Grown for Canning in Southeastern Washington

R. D. Eichmann and R. L. Webster
Extension bulletin (State College of Washington. Extension Service), 389, State College of Washington Extension Service
08/1940
DOI:
https://doi.org/10.7273/000003853
Handle:
https://hdl.handle.net/2376/124539
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eb_1940_08_n38918.88 MBDownloadView
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Abstract

Agriculture -- Washington (State) Home economics -- Washington (State)
Topics include: Introduction; Methods of Observation; Aphid Occurrence as Influenced by Alfalfa; Aphid Abundance Over Three Seasons; Factor Limiting Aphid Abundance; Summary and Conclusions; Literature Cited

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