european corn borers, first-generation, economic thresholds
Economic thresholds for European corn borer are based on the following factors: • Cash value of the crop – Yield in bushels per acre x price in dollars per bushel • Cost of treatment – Cost of insecticide + cost of application • Average number of live corn borer larvae per plant
McLeod, Murdick, "Economic Thresholds for First-Generation European Corn Borers" (1996). SDSU Extension Extra Archives. 321.