Grasshoppers of Wyoming and the West

Entomology

Figure 369 - Number of square miles (in 1000's) of Colorado infested by grasshoppers at a density of three or more grasshoppers per square yard during the period 1933 to 1981.

Figure 369 - Number of square miles (in 1000's) of Colorado infested by grasshoppers at a density of three or more grasshoppers per square yard during the period 1933 to 1981.
Source: Cooperative Economic Insect Report.

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