This insect is particularly damaging to whole grain kernels since its larva bores into and devours the endosperm and germ of the kernel. The moths lay their eggs on wheat heads or corn tips in the field or on stored grain. The larvae feed and develop entirely inside the kernels. Before pupation they cut their characteristic circular exit hole in the seed coat. The entire life cycle may be completed in 5 weeks under ideal conditions.
Fumigation is the preferred control measure.