Home > Question >

What are the brown corky lumps on my potatoes?

Our Advice:

This is common scab, which can also affect beetroot, swedes and turnips. It is worse on dry, limey soils, so keep the plants well watered, don't add too much lime and choose cultivars which show some resistance, such as; 'Accent', 'Arran Pilot', 'Juliette', 'Golden Wonder', 'King Edward', 'Pentland Crown' and 'Pentland Javelin'.

Here are some related questions:

Not what you are looking for?

If you can't find what you are looking for on the website then you can ask one of our experts. To get in touch with us Click Here

We will try to get back to you with an answer as soon as we can.

Here is some more information for you:

Did you find this answer useful? Subscribe to our newsletter for gardeing news, projects, special offers and competitions.

Ask another gardening question:

Learn More About Pests and Diseases

Gardening Projects for September

---

How to plant through weed-suppressing membrane

How to: New orchids from old

How to make the most of your dahlias

How to protect against birds

Latest Gardening Videos

---

When is the best time to prune my bottle brush plant?

Five Essential Tips for Growing Lemons

Cultivating Melons

How to Plant Spring Flowering Bulbs

Will tulips grow in the shade?

How do I 'thin' grape bunches?

All Videos

Explore Gardens from Around the World

Eram Garden
Shiraz, Iran

Humble Administrator's Garden
Suzhou, China

Butchart Gardens
British Columbia, Canada

Kenrokuen Garden
Kanazawa, Ishikawa, Japan

Keukenhof
Lisse, Netherlands

Kirstenbosch National Botanical Garden
Cape Town, South Africa