The risk of insect resistance is real but may be reduced with proper planning. To help preserve the effectiveness and benefits of Bacillus thuringiensis (B.t.) technology, farmers are required to follow an Insect Resistance Management (IRM) plan. Growers must read the Technology Use Guide prior to planting for details on planting a refuge and other requirements of the IRM Plan.
Technology Use Guide
English (.pdf 2.6M)
French (.pdf 2.9M)
IRM Corn Refuge Calculator – This calculator assists corn farmers in determining refuge acres, bags of seed to purchase, and planting configurations.
