Picture gallery: important diseases and pests in potatoes

Adulter Kartoffelkäfer

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 1: Potato plant with serious virus Y symptoms

Photo 2: Egg deposition of Colorado potato beetle

Photo 2: Egg deposition of Colorado potato beetle

Photo 3: Colorado potato beetle and larvae feeding on foliage

Photo 3: Colorado potato beetle and larvae feeding on foliage

Photo 4: Symptoms of blackleg on potatoes (Erwinia carotovora)

Photo 4: Symptoms of blackleg on potatoes (Erwinia carotovora)

Photo 5: Potato shoots died off due to Rhizoctonia solani (black scurf)

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 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 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 8: Phytophthora – infestation of the stem

Photo 9: Phytophthora infestans – several patches of symptoms on the stem

Photo 9: Phytophthora infestans – several patches of symptoms on the stem