Pests and Diseases forum→What kind of pest is that?

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MaxLuman
May 9, 2020 11:28 AM CST
Hello!

I noticed that some leaves on my calathea rufibarba developed yellowish patches. I ignored it for some time because I thought it's just a leaf getting old (stupid me). When I inspected the leaf I found out there are very tiny, white dots underneath the leaves. I cleaned the plant with diluted dish soap and spray it everyday to make sure all of it dies. I don't think it's spider mites, I had them once and you can see it's tiny spiders, with this thing you can't see anything but a white dot. Powdery mildew attacks front of the leaves, and this is only underneath.
I attach pictures but unfortunately most of it is already cleaned. You can also see the damage.

Thumb of 2020-05-09/MaxLuman/81a921

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