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kamerasu

Help: Dried white patches with tiny black dots on leaves

kamerasu
8 years ago

I had recently gone on a 10-day vacation w/ no automatic watering system. I had heavily watered all of my plants before I left and placed them all in a dark spot with no watering. When I returned, I found that on many of my plants' leaves, there are these small white patches with tiny black dots on them. Some of these more severe patches became dried up spots with tiny black dots. I have also recently started watering with my aquarium water.
Does anyone have any idea what might be causing this? Nutrient burn? Changes caused by lack of sun/watering for 10 days? Insect infestation? Disease?


Here are some images:

Pepper leaf


Catnip leaf



Basil leaf:


Thanks for your help!



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