Insect Alert For

Corn Rootworm

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

Corn rootworm hatch risks now encompass much of the corn-growing region, especially more intensive-grown acres, from Kansas north into Nebraska, South and North Dakota, Minnesota, Iowa, northern Missouri, Illinois, Wisconsin, Indiana, Ohio, and lower Michigan, as well as into portions of southern Ontario, Canada. Moderate risks for more scattered or isolated rootworm issues extend across eastern Colorado into western Nebraska, central and northern Dakotas, northwest Minnesota, and then further east into the northern growing reaches near the Great Lakes. Growers should not only be concerned with larvae populations in most of these areas but some beetle populations may now be present in more advanced fields. Both scouting and digging up roots should be considered especially in areas with corn rootworm problems historically or where fields may be showing some signs of potential rootworm damage.