The responses of Prostephanus truncatus (Coleoptera: Bostrichidae) and Sitophilus zeamais (Coleoptera: Curculionidae) to pheromone and synthetic maize volatiles as lures in crevice or flight traps

aggregation pheromones atrayentes attractants attractif bostrichidae cereales cereals coleoptera curculionidae feromonas flight grain granos insecte nuisible mais maize orientation pest insects pheromone traps pheromones plagas de productos almacenados prostephanus truncatus sex ratio sitophilus sitophilus zeamais stored products pests trampas trampas sexuales traps vol volatile compounds vuelo zea mays