Home > Question >

Why do my leeks keel over in the autumn and winter?

Our Advice:

The most likely cause is an attack by leek moth. Caterpillars burrow into the stems of leeks and onions, weakening the plants. Spray with Bayer Greenfly Killer'>Greenfly Killer from Bayer from late-spring through to mid-autumn or protect plants with horticultural fleece.

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 February

---

How to take Hardwood Cuttings

How to Chit Potatoes

How to Force Lily-of-the-Valley

How to pH Test Soil

Latest Gardening Videos

---

Why are there brown / black marks on my Hellebores?

How can I get rid of a red ant nest in my lawn?

5 Essential Spring Bulb Tips in 1 minute

Removing a Tree

Five Essential Tips for Growing Lemons

How do I insulate my greenhouse?

All Videos

Explore Gardens from Around the World

Royal Botanic Garden Sydney
Sydney, Australia

Pamplemousses Botanical Garden
Pamplemousses, Mauritius

Eram Garden
Shiraz, Iran

Gardens of the Generalife, Alhambra
Granada, Spain

Kenrokuen Garden
Kanazawa, Ishikawa, Japan

Nongnooch Tropical Garden
Pattaya, Thailand