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Noctua pronuba (Lepidoptera: Noctuidae): An Outbreak in Emails
ABSTRACT.
Noctua pronuba (L.) is one of the most common Noctuid moths in Europe. The first moths collected in North America were found in Nova Scotia in 1979, and this species has since spread across Canada and the United States. N. pronuba caterpillars, sometimes called winter cutworms, are cold tolerant and remain active during the winter months in the northern part of its range. N. pronuba has not been previously reported as a crop pest in Canada or the U.S. This article documents an outbreak in 2007–2008 in Michigan that included crop damage to alfalfa and small grain fields, destruction of turf, and pet illness. This is the first confirmation of damage by this cutworm to commercial field crops in North America.
Key Words: Noctua pronuba; winter cutworm; large yellow underwing; alfalfa; small grains
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