Mississippi County
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| Insect | ID | Threshold |
| Cherry Oat Aphid | mottled, yellowish to black color | Fall: 3 at 30 days after emergence (DAE), 6 at 60 DAE per ft of row |
| English grain aphid | pale green w/ long black antennae | Spring: >10 per foot of row |
| Greenbug aphid | pale green w/ dark green strip down back | Heading: >25 per foot of row |
| Corn Leaf aphid | fuzzy, flat, black antennae and 1/3 longer than body | |
| true armyworm | Adult: moth w/ white spot center of forewings | 4 or more non-parasitized |
| Young Larva: dull green (looper like) | larvae per square foot and | |
| Older: brown w/ white-border orange line stripes and | before 2-3 heads are cut | |
| dark spot above each proleg | ||
| cereal leaf beetle | Adult: <0.25 inch, metallic blue-black | 1-2 larvae per tiller |
| Larvae: yellow but covered w/ fecal mat. | 1 per flag leaf w/ 30% hatch |
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University of Missouri Extension Mississippi County mississippico@missouri.edu Updated 05/24/04 |
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