Home > Question >

When can I start spraying greenfly on a leyland conifer hedge?

Our Advice:

Cypress aphids cause brown patches of dead foliage by sucking the sap. Watch for yellow mottling on shoot tips to indicate that insects are actively feeding. This would usually start in late-March or early-April so spray then.

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 March

---

How to keep a lawn drained

How to grow Gladioli

How to Chit Potatoes

How to sow large seed

Latest Gardening Videos

---

Why are my pansies and violas wilting?

Removing a Tree

5 Essential Spring Bulb Tips in 1 minute

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

Five Essential Tips for Growing Lemons

Potting Cacti

All Videos

Explore Gardens from Around the World

Royal Botanic Gardens Victoria
Melbourne, Australia

Lalbagh Botanical Garden
Bangalore, India

Butchart Gardens
British Columbia, Canada

Majorelle Garden
Marrakesh, Morocco

Rikugien Gardens
Tokyo, Japan

Keukenhof
Lisse, Netherlands