The influence of different under-growth and IPM spray schedules on apple damage, fruit quality and yields | [Influence de differents enherbements et des calendriers de pulverisation en gestion integree des ravageurs sur les degats aux pommes, la qualite et le rendement des fruits]

arbre fruitier calidad cover plants crop yield damage fruit trees huerto frutal insecticidas insecticide insecticides integrated pest management lesiones lesions malus malus pumila orchards plantas de cobertura plante de couverture poland pologne polonia quality rendement des cultures rendimiento de cultivos verger