[Maize seed must be protected when necessary [Zea mays L. - Veneto - pest control]]

agrotis ipsilon agrotis segetum concia delle sementi control de insectos controllo degli insetti crop yield date de semis diabrotica virgifera environmental protection epoca di semina fecha de siembra field experimentation graine insect control insecticidas insecticide insecticides insetticidi mais maize protection de l'environnement recubrimiento de semillas rendement des cultures rendimiento de cultivos seed dressing seeds semi semilla sowing date traitement phytosanitaire semences veneto zea mays