Similar Questions

Liz
06:42PM, 28 Oct 2009
Answer: Dear Liz, Without a great deal more information...
Category: Diseases
Expert
06:42PM, 28 Oct 2009
eileen
08:49AM, 29 Oct 2009
Answer: Dear Eileen, The damage on your Illawarra Flame...
Category: Pests
Expert
08:49AM, 29 Oct 2009
Anthony
I have callistemons whose leaves are infested with little lumps. What is causing this and what should I do?

I also have an ant problem with these bushes, with what appears to be sooty mould but that has abated in recent weeks. I did prune back a bit too harshly last winter - maybe this caused it.

Submitted: 11:47AM, 08 Apr 2012
Answer: Hi Anthony,

The small lumps covering the Callistemon are probably scale insects. These insects have a waxy coating and produce a sugary substance when they feed. This attracts ants to the bush and causes sooty mould to develop.

The scale can be treated with either Confidor or Pest oil and the best time to treat is in Spring when the scale are small.

If you apply Confidor or Pest Oil you will need to apply a second application about 7-10 later.

The help improve the plant’s health apply some liquid fertiliser such as Yates Uplift Organic Liquid fertiliser which is suitable for native plants.

Category: Pests
Answered: 10:07AM, 13 Apr 2012

Comments

This area is for general comments from members of the public. Some questions or comments may not receive a reply from Yates. For specific gardening advice visit Ask an expert Alternatively you may wish to contact us.