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News for the Crop and Soil Science Department
Damage from winter cutworm (the common name for the larval stage of the large yellow underwing moth) is a growing concern. In 2015, large numbers of larvae were observed around homes, within golf courses, and in field crops located in Oregon and Washington. This publication highlights general information about winter cutworm, including identification, scouting recommendations, and potential control measures.
Larry Lutcher, soil scientist with OSU Extension Service in Morrow County, said the disease is thus far limited to just one field. It has not yet been found in any dryland wheat. Stripe rust tends to thrive in cool, moist conditions when farmers would otherwise expect a promising harvest, Lutcher said. The last year with substantial rust damage came in 2012.
Insects lurking under leaves, climbing up stems and settling into the soil of houseplants frustrate indoor gardeners to no end.
But there are answers, according to Amy Dreves, an entomologist with Oregon State University’s Extension Service.
“Winter is a good time to check indoor plants for sap-sucking insects like mites, thrips, mealybugs, scales, whiteflies and aphids,” she said. “Spotting problems and responding to them early can keep populations from exploding.”
Large numbers of Winter Cutworm (Noctua pronuba), otherwise known as the Large Yellow Underwing Moth, have been reported throughout the fall and winter months across several counties in western Oregon and Washington. First detected in Oregon in 2001, the winter cutworm has not previously been documented as an agricultural pest in the state. See attached document for further reading.