Ask a Question forum: Philodendron white dust

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Name: Kellyn
North Carolina
Nov 9, 2016 4:01 PM CST
I have a philodendron that I've had for about 3 months. I noticed last week that there seem to be some dust gathering on the leaves. I remembered my mom missing her philodendron to keep the dust down and I thought that was what was going on. When I ran my finger along the leaves white powder showed up on my finger. However after I wiped off the leaves with a damp cloth the white powder was still there. I'm concerned it might be some sort of mildew, and that I may have to spread it to my entire plant. What should I do?
Thumb of 2016-11-09/NewGreenThumb/0ebeae

Name: Lin
Southeast Florida (Zone 10a)

Region: United States of America Deer Region: Florida Charter ATP Member Million Pollinator Garden Challenge I was one of the first 300 contributors to the plant database!
Garden Procrastinator Birds Butterflies Bee Lover Hummingbirder Container Gardener
Nov 9, 2016 4:46 PM CST
Hi NewGreenThumb, Welcome!

Your Devil's Ivy (Epipremnum aureum) may be having issues with powdery mildew which can occur from lack of air circulation. You should definitely isolate your plant from any others to keep the mildew from spreading. When watering your plant, keep water off of the leaves by watering just the soil area. Many people like to mist their plants on occasion to help raise the humidity but if their is not adequate air circulation to dry the leaves, mildew can occur.

I found this article written by one of our members, if you scroll down the page there's a section regarding Powdery Mildew on houseplants:

I'm not familiar with the product mentioned here but this might be helpful as well:

I also found this information when googling:
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Name: Sally
central Maryland
Seriously addicted to kettle chips.
Charter ATP Member Native Plants and Wildflowers Region: Mid-Atlantic Composter Region: Maryland Birds
Cat Lover Dog Lover Region: United States of America
Nov 13, 2016 8:05 AM CST
As the last link says, do not mist plants. Pothos should be happy indoors and misting does not make any difference in making it more 'humid' for the plants.
..come into the peace of wild things..-Wendell Berry
Life is a buffet (anon)
Name: Will Creed
Professional indoor plant consultan
Nov 13, 2016 5:47 PM CST
The photo is not clear, but I suspect you are dealing with thrips. If so, spray the entire plant thoroughly with a solution of water with some alcohol and liquid soap added. Thoroughness of coverage is the key. You may need to repeat the treatment again in a week or so.
Will Creed
Horticultural Help, NYC
Contact me directly at [email protected]
I now have a book available on indoor plant care
Name: Kellyn
North Carolina
Nov 17, 2016 2:32 PM CST
Thank you everyone for your help. Hopefully my philodendron is on his way to recovery

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