Stacked insect resistant and herbicide tolerant maize produced by conventional cross breeding of parental lines BT11 (OECD unique identifier: SYN-BTØ11-1), MIR604 (OECD unique identifier: SYN-IR6Ø5-5) and GA21 (OECD unique identifier: MON-ØØØ21-9).  Resistance to the European Corn Borer and tolerance to the herbicide glufosinate ammonium (Liberty) is derived from BT11, which contains the <i>cry1Ab</i> gene from <i>Bacillus thuringiensis</i> subsp. kurstaki, and the phosphinothricin N-acetyltransferase (PAT) encoding gene from <i>S. viridochromogenes</i>.   Corn rootworm-resistance is derived from MIR604 which contains the <i>mcry3A</i> gene from <i>Bacillus thuringiensis</i>.   Tolerance to glyphosate herbcicide is derived from GA21 which contains a a modified EPSPS gene from maize.<br>