Home > Question >

Why have the leaves of my runner beans turned yellow and dropped off?

Our Advice:

This is a bacterial disease called halo blight; always worse in wet weather because it is spread by water splashes. Spray with Copper Mixture from Vitax or Uncle Tom's Rose Tonic as soon as the spots are noticed. This disease is usually seed borne and worse with own saved seed. The variety 'Red Rum' has a high tolerance to this disease.

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 December

---

How to take Hardwood Cuttings

How to: Maintenance Pruning

How to Make a Bird Feeder

How to Protect a Climber

Latest Gardening Videos

---

Growing Geraniums

Moving House and Taking the Garden with You | Garden Ideas | Val Bradley

How do I protect container plants from the cold?

Why are there brown / black marks on my Hellebores?

Five Essential Tips for Growing Lemons

How to Grow Orchids

All Videos

Explore Gardens from Around the World

The New York Botanical Garden
New York, United States

RHS Harlow Carr
Harrogate, United Kingdom

Vallarta Botanical Garden
Vallarta, Mexico

Royal Botanic Gardens, Kew
Richmond, United Kingdom

Nongnooch Tropical Garden
Pattaya, Thailand

Kenrokuen Garden
Kanazawa, Ishikawa, Japan