European corn borer caterpillars damage the ears of corn, as well as the stalks, chewing tunnels which cause the plants to fall over. Biological control agents of corn borers include the hymenopteran parasitoid Trichogramma.
Bt corn, a variety of transgenic maize, has had its genome modified to include a gene from the Bacillus thuringiensis, ssp. kurstaki. As a result the corn variety produces a toxin which affects the corn borer, and as critics have pointed out, beneficial predatory insects as well.
Female corn borer moths lay clusters of eggs on corn leaves, usually on the underside of the leaf. The egg masses, or clusters, are laid in an overlapping configuration and are whitish-yellow in color. As the larvae develop inside their eggs, the eggs become more and more transparent and the immature caterpillar's black head is eventually visible. The caterpillars hatch by chewing their way out of the eggs.
Registration of GEMS-0001 Maize Germplasm Resistant to Leaf Blade, Leaf Sheath, and Collar Feeding by European Corn Borer.
Sep 01, 2001; GEMS-0001 (Reg. no. GP-363, PI 614142) maize (Zea mays L.) germplasm, which is resistant to damage caused by the European corn...