Roses forum→Teeny Tiny White Spots

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Name: Rosemary
Sacramento, CA (Zone 9b)
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reh0622
Jun 14, 2020 11:24 PM CST
Hi—Does anyone know the cause of these tiny white spots on the top of some rose leaves? Mites or something else like a disease or deficiency? I am asking for a friend, but I noticed some on one or two of my roses as well. Thank You!
Thumb of 2020-06-15/reh0622/75f606

Name: seil
St Clair Shores, MI (Zone 6a)
Roses Garden Photography Region: Michigan
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seilMI
Jun 16, 2020 8:26 PM CST
This looks like some kind of insect damage. They chew/suck on the undersides of the leaves and create those spots. Check the bottoms of the leaves, especially at the stems where they connect to the canes, and see if there's any kind of bugs.
SW Ohio River Valley (Zone 6b)
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vaporvac
Jun 16, 2020 10:02 PM CST
They look a bit like spider mite damage.
Name: Rosemary
Sacramento, CA (Zone 9b)
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reh0622
Jun 17, 2020 9:34 AM CST
Thank you for the responses. The bottom of the leaves look almost perfect, although i did see a little white speck on the underneath of two leaves. I guess mites can be microscopic, even too small to see. The leaf came from an OGR. It was almost completely dried out a couple of hrs. later before I posted the pic.

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