Tuesday, May 10th 2011 — Corn Earworm

2011_5_10_CEW_day1
Red: high risk, Yellow: moderate risk, Green: low risk, Brown: insect source region
How to Read the Maps

Moderate corn earworm migration risks continue for the next couple days especially across portions of Kansas and Missouri closer to active source regions in the mid-south and into northern Texas. Persistent south to southwest winds to the east of a stalled cold front are expected to originate in northern Texas and southern Oklahoma and blow north. Precipitation will also be possible especially in the western portion of the Moderate risk area which may further enhance insect drop out. Low migration risks extend as far north as the Iowa-Minnesota border and also into Indiana and Ohio by Thursday night and into Friday morning as the whole weather system moves east.

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Corn Earworm

CEW thumb

Corn Earworm (Helicoverpa zea) Corn earworm is found throughout North America except for northern Canada and Alaska. Normally, corn earworm does not overwinter successfully in the northeastern United States. It is known to survive as far north as about 40…

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