hm... I'll just keep wiping it off. It took about 2 weeks before it showed back up. I'll keep an eye on them
don't fool around with PM once its in the garden it can be VERY persistent.
check you RH and make sures its not too high.
If you can and your plants are strong enough allow your room temperature to get into upper 80s (can go as high as 90+) for a couple of hours a day.
if possible immediately drench spray with neem oil or something else like potassium bicarbonate, rosemary extracts, milk, molasses or h2o2.
Repeat at least twice a week since once you can see the PM their are spores everywhere.