Contents tagged with disease

24 October 2019

Tubers, stolons and occasionally leaf stalks affected, but not roots. Tubers may bear cauliflower-like tumours at the eyes or whole tuber may become shapeless warted mass.

24 October 2019

Violet Root Rot (Helicobasidium purpureum) is a disease of some vegetable crops including potatoes.

24 October 2019

Verticillium wilt is a fungal disease of the vascular tissue of potato and most commercial cultivars are susceptible.

24 October 2019

TNV is a rare tuber blemish disease with no haulm symptoms. The disease is also known as ‘ABC’ disease named after three symptom categories first described in the Netherlands.

24 October 2019

TRV is one of two viruses causing spraing in potato that is most commonly associated with tuber internal blemishing.

24 October 2019

PMTV is one of two viruses causing spraing in potato. Infections are commonly associated with tuber internal blemishing (see also TRV). This is a significant cause of rejections of both ware and processing crops. Symptoms do not increase during storage.

24 October 2019

Skin spot (Polyscytalum pustulans) is a fungal disease of potato tubers which is generally symptomless until after approximately 2 months of storage, when the infected tissue begins to show spots on some varieties.

24 October 2019

Silver scurf (Helminthosporium solani) is a ubiquitous fungal blemish disease of potatoes.

24 October 2019

Rubbery rot is caused by the fungus Geotrichum candidum. It is more commonly found in first early and second early crops.

24 October 2019

Ring rot is caused by the bacterium Clavibacter michiganensis subsp. sepedonicus. The disease is favoured by cooler climates and, already established in northern and Eastern Europe, could readily establish under UK conditions.

24 October 2019

Powdery scab (Spongospora subterranea) is a fungal blemish disease of potatoes. The “powder” is comprised of spore balls (cystosori) that are released into the soil and can survive up to ten years.

24 October 2019

PLRV was once the most common virus in seed stocks and also caused the greatest yield loss in ware crops.