Hearty Rootworms Revive
8:57 pm
Wed June 26, 2013

Farmers Return to Insecticides

After foregoing insecticides for a decade, Iowa corn farmers are returning to chemicals to control their  number one  pest, the corn rootworm.   That’s because the insect has developed resistance to Bt corn.    Experts say that’s  bad for farmers' profits  and the environment.

Credit Aaron Gassmann