Ask a Question forum: Unknown plant fungus

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chezza
Apr 17, 2017 11:03 AM CST
One of my house plants has developed yellow spots of fungus on the leaves and stems. I've tried googling but nothing seems to match the description. It comes off easily with water but always returns.
I'd love to know what it is and how to treat it. I've attached a photo.
Thanks

Cheryl
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Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
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DaisyI
Apr 17, 2017 11:20 AM CST
Welcome!

Its not a fungus but an insect called scale. The best way to get rid of them is to wipe the leaves with a cotton ball dipped in alcohol. Then wash the plant thoroughly with warm soapy water. Watch for re-infestations and repeat the alcohol cleaning and washing until you don't see them anymore.

Your first photo shows what might be mealybugs - its hard to tell. Scale are little waxy dome homes with the insect living underneath. Mealybugs look like little cotton balls. The treatment is the same.

Watch any plants near this one for outbreaks of their own.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

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