Abstract
A significant relationship existed between second-flight European corn borer (ECB), Ostrinia nubilalis (Hübner), females captured in black-light traps (BLT) and pheromone traps (PT) under low population densities in 1981 and 1982. Results of our experiments also suggested that the black-light and pheromone traps measured different responses from male moths. A two-step model was proposed for predicting ECB egg mass depositions in specific corn fields based on captures in PT.