Cutworm & Armyworm Identification – quick guide reference -

TRUE Prefers grasses and corn, Repeating lateral stripes of different colors, the but can be polyphagous. ventral-most section may have a pinkish hue. ARMYWORM Alternate hosts include: Each proleg has a black tip. The head is small unipuncta brassicas, millet, and eyes have a strong netting pattern. Feeds common , pea, and moves across landscape in large groups , radish, corn, and sunflower GLASSY All grasses, especially Translucent, whitish coloring, devoid of any fescue, reed canary identifying marks. Head is reddish-brown with CUTWORM grass, orchardgrass, and a darkened plate on the thorax (just behind the Apamea devastator corn. If populations are head). Glassy cutworms feed near the soil high enough, feeding on surface, and also chew on roots and , , bean, vegetative parts underground beets, and radish can occur CLOVER Clover and other Green or dark forms possible, a yellowish legumes, peas, common band is evident on the sides of the back, with CUTWORM lamb’s quarters, beets, black dashes just above it, spiracles Anarta trifolii quinoa, lettuce, cabbage, surrounded by dark. Dorsally brown to gray,

elm, poplar, weedy with a central line that can vary from faint pink photo credit: W. Wagner, mustards. More common to bright yellow used with permission East of the Cascades VARIEGATED Generalist feeders, larvae Large and ‘bulky’, reddish-brown. Black documented on 100+ dashes possible. In late stage larvae, a series CUTWORM species of plants of yellow dots is evident, but they do not saucia including clover, dock, extend the entire length of the body. Winter

sugarbeet, and extensive cutworm looks similar but does not have photo credit: P. Mazzei, damage to mint yellow spots on back used with permission BLACK A generalist feeder, Overall ‘greasy’ appearance, body a uniform common on corn and color, one may see pairs of uneven black CUTWORM herbaceous vegetables, spots on the back of each segment. Head is but known to feed on 50+ brownish with spots or netting pattern on the photo credit: G. Fauske, plants, incl. sugarbeet eyes, depending on age NDSU Ext.

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