A new aggressive potato blight strain was detected in Wales and eastern Scotland earlier this year. The strain, identified as EU 46, can withstand certain fungicides, making it harder to control. It serves as a stark reminder that nearly 175 years after Ireland’s great famine, this destructive pathogen continues to evolve and endanger crops around the world.
Each year, farmers lose an estimated US$6–7 billion (£4.5-5.2 billion) worth of crops due to this disease. In Europe alone, direct losses and control costs amount to over €1 billion (£800 million) annually. That includes the cost of expensive fungicide sprays that farmers rely on for protection.
In developing countries, the stakes are even higher. Many smallhold farmers lack resources for intensive disease management. In Uganda, potato blight can destroy up to 100% of a farmer’s crop, endangering livelihoods and local food security.
