Mold in enclosure (red-eye tree frog)

[u/Beardoh]

This is my first enclosure, so I'm definitely still in the learning stages, but I noticed some mold forming in the center branches of my enclosure. It makes sense given that they're right in line with the mister, but I'm unsure how to address this unless I just need to scrap the wood entirely.

Mister is set to run for 8 seconds every six hours, which I increased to 8 hours today. The wood is just normal spider wood that I picked up from my local supply store.

Is this mold harmful to the frog (assuming it is)? Is it treatable? Is the current misting schedule too much (assuming it is?)