Succulent Plants

What are flat, whitish spots and brownish, slightly raised spots appearing on succulents and cactus

Zone Gt/Southern W.A. near coast | Garden Nut added on October 18, 2013 | Answered

White spots on some succulents and brown slightly raised spots on others. I cannot see any insect that might be making them. Are the plants diseased? How to cure?

A.Answers to this queston: Add Answer
Answered on October 18, 2013

It sounds like scale. This article should help identify:

In addition to insecticides, both systemic and contact, I've used water pressure to help control scale. If the skin of the cactus or succulent is reasonably tough, I've applied water through a shut-off valve that knocks the scale from the plant. Be careful that the stream of water isn't so hard that it damages the plant. After getting scale from the plant, I usually use both contact and systemic insecticides. In the case of scale, my theory is, "Either kill the scale or kill the plant." Sometimes, if the infestation isn't too large, a toothbrush works well. And, remember, there are several varieties of scale. Color can indicate variety or maturity of insect.

Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Succulent Plants
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More