Pic for reference. We’ve had a couple posts lately about spots on zygopetalum leaves. I’ve moved mine out of the window it had been in to reduce some of the light it had been getting, and sprayed with Garden Safe brand ‘Fungicide 3’ twice, a week between treatments. So far, I haven’t noticed any spread, particularly on the young leaves unfurling from the newest pseudobulb… I may do one more treatment this week.