Virulence and control effect of entomopathogenic nematodes against Agrotis ypsilon (Rottemberg) Comparison of the bioactivity of cyantraniliprole and chlorantraniliprole against three important lepidopterous pests Insecticidal activity of Cry2Ab proteins to Agrotis ypsilon The behavioral response of the male black cutworm moth to female sex pheromone Damage and control of Agrotis ypsilon on Scrophularia ningpoensis