Corn growers have quickly recognized the value of HERCULEX® XTRA and adopted it because it provides a broader spectrum of insect protection for their high-yielding hybrids. HERCULEX® I insect protection provides the broadest above-ground, in-plant insect protection available today against pests like European corn borer, southwestern corn borer, western bean cutworm, black cutworm and fall armyworm. Other above ground in-plant traits primarily protect against European and southwestern corn borer. HERCULEX® Rootworm is the first transgenic corn trait to express binary proteins - cry34 ab1 and cry35 ab1. These unique strains of BT have proven through grower use and company and extension field trials to provide excellent protection against three species of corn rootworm: western, northern and Mexican corn rootworm. Combine these effective traits with the LibertyLink® and Roundup Ready® 2 genes and you have the most effective insect and weed control combination on the market today. 20% refuge is required.