red gooseberries on a branch of gooseberry bush with a powdery mildew podosphaera mors-uvae

affectedplant agriculture berry biology blurredbackground branch bush chemicalcontrol closeup control cultivar damage danger disease diseasemanagement ecology foliar fruit fungal fungaldisease fungicide garden gardenplant gooseberries gooseberry infectedberries infection leaf microorganism mildew mold morsuvae nature outdoor parasite pathogen pathology pesticide plantprotection podosphaera powdery preventing problem red repellent shrub spores summer symptom vegetation wet