The IRM refuge calculator is a tool intended to illustrate the appropriate refuge calculation, the quantity of standard seed bags to purchase for both trait and refuge, and possible planting configurations for planting certain corn products in the United States. This refuge calculator does not replace or supplement the applicable manufacturer's IRM Grower Guide in any way. As a grower using this information, you are still obligated to understand and abide by the applicable IRM Grower Guide on planting and Insect Resistance Management.