Picture gallery: important diseases and pests in potatoes
Colorado potato beetle
A multitude of diseases and pests infest potato plants and tubers. The most important pathogens in potatoes relevant in South Germany are presented here.
Photo 1: Potato plant with serious virus Y symptoms
Photo 2: Egg deposition of Colorado potato beetle
Photo 3: Colorado potato beetle and larvae feeding on foliage
Photo 4: Symptoms of blackleg on potatoes (Pectobacterium spp., Dickeya spp.)
Photo 5: Potato shoots died off due to Rhizoctonia solani (black scurf)
Photo 6: In wet years Rhizoctonia solani especially causes the dry-core symptom
Photo 7: Already in the first half of June a potato plot can be badly damaged by an initial infestation (stem infestation) with Phytophthora
Photo 8: Phytophthora – infestation of the stem
Photo 9: Phytophthora infestans – several patches of symptoms on the stem