Hello, everyone!

I recently had a (possible) infection of powdery mildew on my Jade Plant. While the diagnosis was uncertain, I decided to treat my plants with a fungicide and keep them quarantined to prevent any (possible) spread.

Does anyone have advice on reintroducing plants following a quarantine? How can one be certain that the infection is gone and will not spread? Essentially, when are you comfortable reintroducing your plants again?

Thank you for your advice!