a few of my cacti have a rust fungus which first appeared on my dragonfruit. what is the best course of action to remedy it? im worried about using copper fungicide as ive recently applied some sulfur. from what ive read copper fungicide, neem oil and garden phos are options, but im not sure what the best course of action is if its spreading aggressively? there was no rust on this cacti 2 days ago, id like to get ahead of this ASAP to avoid further contam
by bigwep
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