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  • Grasshoppers in Washington 

    Suomi, Daniel; Thomasson, Gary L.; Keim, David (Pullman, Washington : Washington State University. Extension., 1990-01)
    Grasshoppers are not a problem every year. Following a population buildup and a long, dry spring, grasshoppers can reach numbers capable of causing economic damage. Color plates of grasshoppers found in Washington State. 6 pages.
  • Grasshoppers in Washington 

    Suomi, Daniel; Thomasson, Gary L.; Keim, David (Pullman, Washington : Washington State University. Extension., 1990-01)