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Spotted Alfalfa Aphid Threat Expands Across United States
The spotted alfalfa aphid, the fastest spreading foreign pest, has advanced east of the Mississippi and reached 30 states. It damaged alfalfa in 11 Western and Midwestern states last year, with California, Kansas, Oklahoma and Texas reporting the largest losses. Researchers pursue resistant alfalfa varieties, biological controls, and new insecticides while noting natural enemies and climate influence.
MENTIONED IN THIS ARTICLE
Mississippi River
U. S
U. S. Department of Agriculture
United States
South Dakota
Minnesota
Wisconsin
Mississippi
California
Kansas
Oklahoma
Texas
Nebraska
USDA
Mexico
Missouri
Arkansas
Arizona
India
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