Stalk Breakage of Dent Corn Infested with the August Generation ofthe European Corn Borer12

Significant Developments in European Corn Borer Research

“…Pollen shedding corn is more desirable for survival of larvae, since the early mor tality is much lower on this stage than on whorl-stage corn. Because of higher levels of survival resulting from a second-generation infestation, stalk breakage and ear dropping become important harvesting problems [Dicke (57) ; Patch (110,113)].…”

Evaluating popcorn as potential refuge for European corn borer (Ostrinia nubilalis) and corn rootworm beetles (Diabrotica spp)

“…Second generation larvae feed on corn stalks, ears (including silks), and ear shanks, which results in yield losses of 2-3% per larva per plant (Bode andCalvin 1990, Pilcher andRice 2001). The major cause of yield loss is physiological damage caused to corn plants by larvae tunneling in stalks (Patch et al 1951, Lynch 1980. Larvae feeding in the ear shank often cause yield loss due to unharvestable ears.…”