ZZ Plants
Q.

What Are These Spots On My Zz Plant?

Zone Wilmington, NC 28411 | Barb Flynn added on February 24, 2020 | Answered

I have had this plant for about seven years. It is very healthy but at times it will develop these brown spots on it that are removable. I can just wipe them off. I don’t know if they are bugs or eggs or some other kind of problem with my plant. Any help you can provide will be appreciated thank you so much for your help.

A.
A.Answers to this queston: Add Answer
BushDoctor
Certified GKH Gardening Expert
Answered on February 24, 2020

Unfortunately, your photo did not come through. I can't say, with certainty, what your issue is.

My best guess, given the description, is that it is a scale infestation.

This requires manual removal, for the most part, as they seal themselves to your plant. This makes it hard for chemicals to enter their hard shell.

Other methods can work, once you have removed most of them by hand. These articles will help: https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm

https://www.gardeningknowhow.com/plant-problems/pests/insects/what-is-armored-scale.htm

https://www.gardeningknowhow.com/houseplants/zz-plant/caring-for-zz-plant.htm

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