Is this Erwinia?

[greenhouseFrog]

At any rate, liquid copper from SouthernAg(active ingredient: copper ammonia diacetate 27.15%)is the only thing I could find on short notice—seeing as I’m limited to the hardware store garden centers at the moment, this is going to have to suffice for the time being!


Out of sheer laziness, I didn’t unpot last night and instead cut the growth off below the margins of the affected tissue with some flamed pruners. Unfortunately, it still looked a little custard-like further below the cut…I’m not feeling any more motivated to unpot this thing today

[estación seca]

Most of the time rot in Oncidiums during times of high heat comes up from the rhizome. By the time you see it in the leaves multiple growths are affected.

[Ray]

The Southern Ag Liquid Copper is what I have used.