lutte antiparasitaire (1) champ (1) effet (1) maladie (1) Observations (1) Observations (1) Plant biomass (1) Vitality (1) Sowing (1) Science (1) Pests--Control (1) Performance (1) Field crops (1) Dates (Fruit) (1) Yields (1) Sowing (1) Performance (1) maladie (1)