Help with snow mold.
I have this large Grammatophyllum speciosum which is sitting in a 40 gallon tub. I was digging around the new bark yesterday to see how the new root production was going. Lots of new roots extending into the new bark but also some snow mold was evident.
Normally when I find snow mold I repot and throw all affected material away. This is impracticable here so I'm finding myself in virgin territory. I could dig out as much as possible and add fresh bark but the chance of getting all of it is almost zero.
I was considering flushing with a Physan solution. A friend suggested soaking it with 1/4 stength, 20 minutes later flushing it thoroughly with clean watwer and then again flushing it with about 1/10 strenght and leaving that. For the next few weeks I would keep monitoring the affected areas and gauge the results.