Influence of host plant, geography and pheromone strain on genomic differentiation in sympatric populations of Ostrinia nubilalis

Patterns of mating for the European corn borer ( Ostrinia nubilalis ) moth depend in part on variation in sex‐pheromone blend. The ratio of ( E )‐11‐ and ( Z )‐11‐tetradecenyl acetate (E11‐ and Z11‐14:OAc) in the pheromone blend that females produce and males respond to differs between strains of O. nubilalis . Populations also vary in female oviposition preference for and larval performance on maize (C4) and nonmaize (C3) host plants. The...