SCOUT FOR SOYBEAN VARIANT OF WESTERN CORN ROOTWORM
THE WESTERN corn rootworm soybean variant is on the move, and corn growers in the fringe areas need to scout for the pest. The soybean variant is moving from Indiana and eastern Illinois into Ohio, southern Michigan, western Illinois and even into Iowa.
The soybean variant has adapted to the corn/soybean rotation by laying eggs in soybean fields, according to Matthew O'Neal, Iowa State University. Eggs hatch in the spring after the field has been planted to corn. Growers in fringe areas should place several yellow sticky traps in each soybean field in late July to check for beetles. If beetles are found, a corn rootworm treatment may be needed for the next corn crop.