Insect Alert For

Corn Rootworm

Risk Level:
High Risk
Affected Area:
Full page
Alert Details

Corn rootworm hatches will remain possible in the next week especially along and north of the I-94 corridor in Minnesota and North Dakota, but the main threat from here on out will be with potential beetle populations reaching or exceeding thresholds and potential silk clipping as corn progresses through the pollination stage. Growers with a recent history of fields that have experienced corn rootworm problems in the past few years should pay especially close attention to beetle populations and be prepared for potential treatment and/or changes to field practices next growing season. Beetle populations should be monitored especially across the central and southern corn-growing region (mainly along and south of I-90) but additional beetle populations should appear further north into the northern corn-growing region in the next week or so, as well.