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<\/p>\nWinter cutworm egg-laying activity has been recently reported as shown in the pictures taken on host plants as well as on non-plant structures in and around farms in Western Oregon. This insect lays its eggs in flat sheet clusters. The eggs are spherical in shape, ribbed and reticulate, and cream-colored to yellow, but darken over time. One female moth can deposit up to 2,000 eggs in her lifetime. Eggs hatch after 2 to 4 weeks, depending on the weather conditions. Field collected eggs were viable and no parasitization was noted when brought to the lab early this week.<\/p>\n
We recommend destroying the egg masses as you encounter them in your fields or farm structures by either crushing using sharp objects or smashing to allow a promising physical\/mechanical control before they get to hatch and disperse in the field and cause damage this fall.<\/p>\n
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For further information on this pest, please refer to resources below:<\/p>\n
PNW Insect Handbook\u00a0Chapter: Grass Seed-Winter Cutworm<\/a><\/p>\n OSU Extension Publication: Winter cutworm, A new pest threat in Oregon\u00a0<\/a><\/p>\n https:\/\/bugguide.net\/node\/view\/576181<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Winter cutworm egg-laying activity has been recently reported as shown in the pictures taken on host plants as well as on non-plant structures in and around farms in Western Oregon. This insect lays its eggs in flat sheet clusters. The eggs are spherical in shape, ribbed and reticulate, and cream-colored to yellow, but darken over … Continue reading Destroy Egg Clusters of Noctua pronuba, Large Yellow Underwing Moth to Prevent Winter Cutworm Damage this Fall!<\/span>