This is honeydew, the residue from greenfly, mealy bug or scale insects feeding on the plant. Spray with Provanto Ultimate Bug Killer from Bayer or Bug Clear Ultra from Scott's. Both of products are systemic, last for several weeks and kill the insects as they feed.
Gardening Expert: |
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.
Did you find this answer useful? Subscribe to our newsletter for gardeing news, projects, special offers and competitions.
Gardens of Versailles
Versailles, France
Vallarta Botanical Garden
Vallarta, Mexico
Saint Petersburg Botanical Garden
Saint Petersburg, Russia
Longwood Gardens
Pennsylvania, USA
Eram Garden
Shiraz, Iran
Koishikawa Korakuen Gardens
Tokyo, Japan