The Western corn rootworm, Diabrotica virgifera virgifera, is one of the most devastating corn rootworm species in North America, especially in the midwestern corn-growing areas such as Iowa. A related species, the Northern corn rootworm, D. barberi, co-inhabits in much of the range and is fairly similar in biology.
Two other subspecies of D. virgifera are described, including the Mexican corn rootworm (Diabrotica virgifera zeae), a significant pest in its own right, attacking corn in that country.
Corn rootworm larvae can destroy significant percentages of corn if left untreated. In the United States, current estimates show that 30,000,000 acres (12,000,000 ha) of corn (out of 80 million[clarification needed] grown) are infested with corn rootworm. The United States Department of Agriculture estimates that corn rootworms cause $1 billion in lost revenue each year,[1] including $800 million in yield loss and $200 million in cost of treatment for corn growers.[citation needed]
^Metcalf, R. L. (1986). "Foreword". In J. L. Krysan; T. A. Miller (eds.). In Methods for the Study of Pest Diabrotica. New York: Springer. pp. vii–xv.
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The Westerncornrootworm, Diabrotica virgifera virgifera, is one of the most devastating cornrootworm species in North America, especially in the midwestern...
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