Vanda fungal infection?

[SouthPark]

Do you keep some fungicides for orchids? If not, then could order a few to keep in the orchid first aid kit. I keep thiomyl (apparently same sort of stuff as cleary's 3336), yates anti-rot phosacid (similar to agri-fos systematic), mancozeb, and a copper spray. I have other ones too in the kit, like Captan. I rarely have to use them - or pretty much never have to use them for treating fungal infections - but always have something - just in case.

I did have to use some yates anti-rot to treat some minor rot on catasetum leaves/stems last year - treated very successfully. So having supplies on hand - waiting in the wings - can be super helpful.