I recently repotted some of my plants. the leaves are turning yellow with black spots. Is this a fungus?
The potting medium consisted of perlite, oildry, and plain potting soil.
I'm thinking the potting soil could have had some fungus in it.
So I sprayed the plants with a water, hydrogen peroxide, and veg oil mixture. Is this good enough or do I need to drench the pots with a water and hydrogen peroxide mixture that would act like a systematic?
I also lowered the ph of my water to 6.3 - 6.5 could that cause a problem?
