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Student Regular Poster Display

Plant-Insect Ecosystems

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Student Regular Poster: PBT and P-IE, IPM

D3223: Distribution and proliferation of cereal grass aphid in the Pacific Northwest

Tuesday, November 11, 2025
9:00 AM - 5:00 PM Pacific
Location: Exhibit Hall A-A1, OCC
Poster Display
Metopolophium festucae cerealium (abbr. MFC) (Stroyan) is a subspecies of cereal grass aphid native to Britain and Western Europe. Due to destructive feeding behavior in cereals, and the ability to expand rapidly within an environment, the continued spread of this aphid to grain-producing areas is cause for economic concern. Reports of abundant MFC infestations in the U.S Pacific Northwest began to arrive only after 2011. Since then, our research has led us to document MFC’s presence in a variety of habitats across the region, spanning from the Oregon Coast Range to the Great Plains, in an effort to define the present range of MFC and predict its spread to other at-risk areas. To complement this information, a field cage trial was conducted to inform the creation of economic injury models, and a genetic analysis of specimens collected from MFC’s invaded range was used to assess its population structure as a basis for refining management strategies and impact projections. Tests carried out for the transmission of barley yellowdwarf virus through feeding were negative. These findings suggest a research agenda to support monitoring and management of this new addition to the aphid pest complex affecting wheat in the United States of America.