NewsInternationalMap Shows Evolution of 2019 Potato Late Blight in Europe

Map Shows Evolution of 2019 Potato Late Blight in Europe


An international consortium has released a map which tracks the European spatial distribution of Phytophthora infestans in 2019, the plant pathogen responsible for potato late blight. The map uses data which visualizes the distribution and diversity of dominant clones in the 2019 crop.

Plant pathologists from the EuroBlight consortium, which includes the James Hutton Institute, Aarhus University, Wageningen University and INRA, along with industry and research partners, compiled the map as part of their latest report on pathogen monitoring in potato crops. The report includes information from approximately 1,800 samples collected and genotyped.

It was found emerging clones of Phytophthora infestans rose from 10 per cent in 2016 to 40 per cent in 2019 in frequency. Regional differences exist though as frequency declined 10 per cent or less between 2018 and 2019 in The Netherlands and Britain, but remains at 25 per cent in Belgium and France.

The weather in 2019 was very dry and unfavourable for late blight development in some regions but very conducive for blight in other regions like Denmark and Northern Britain, the report states.

For more information from the report visit the EuroBlight website.

Trending This Week

Are Lurking Pathogens Already Wreaking Havoc Below Ground?

Farmers usually feel pretty hopeful about the potential of their crops at the start: the most common comment I hear in early summer is...

Should You Invest in Finetuning? (The Answer Isn’t Always Yes)

Hi! I’m Heather. You might have seen my smiling face show up at your farm, or maybe we’ve crossed paths at a farm show....

Reducing the Wireworm Threat

As a national wireworm research project wraps, growers have more ways to control the pest. When Christine Noronha first started researching wireworms more than a...

Moving Regen Ag from the Pasture to the Potato Field

Work is underway to change the way potato growers think about regenerative agriculture. When the term regenerative agriculture first hit, it was almost strictly in...

Limited Supply Predicted for Processing Spuds

Despite good Canadian potato crop, North American processing market will be tight. After a late start to the growing season, the Canadian potato crop has...