Hi, I have a closet full of growing plants and an ...

I don't see any mold in the pics. WPM or otherwise. Can you take other pics and maybe circle the areas of interest. Also is this a pic of the autoflower?

1. Isolate the Moldy Plant Remove the autoflowering plant with mold immediately from the closet to prevent spreading. 2. Inspect Other Plants Check all plants closely for any signs of mold, spots, or unusual discoloration on leaves or stems. 3. Improve Airflow & Reduce Humidity Mold loves humidity and stagnant air. Increase ventilation—use fans, open vents, or a dehumidifier to keep humidity below 50%. 4. Clean the Space Wipe down surfaces, pots, and tools with a mild bleach solution or hydrogen peroxide to kill spores. 5. Treat Infected Plants If you see spots or mold on other plants: Remove affected leaves carefully. Use a fungicide safe for your plant type (organic options include neem oil or potassium bicarbonate sprays). Ive had the same problem last grow

Doesn't look like mold in that picture. Looks like something dripped on it and dried up The other small blemishes are either something nibbling on the leaf or variegation. little too far away to see. If a pess is cheweing on it, usually has a little glistening ('honeydew') around the edges.

I mean... UV-A can also theoretically kill mold. Not a good solution for mold under any circumstances other than airborne mold, otherwise classical/trivial shadowing effects start working against you. Single cell plant spores, proteins like prions, and things not immediately on the surface are NOT good targets for UV. UV in this tent would not have stopped this mold, it would have mitigated spread. Yes, your mold on that one plant should be assumed to have infected everything in that closet. I'd skip all the hub bub with cannabis cultivation culture being RH-centric, and just learn the real science between active/bound/unbound water and dew point theory. This applies to book archival, artifact archival, meat curing, cheese curing, plastics curing, and yes....cannabis curing. For example, if I told you that your Rogar13 Metric Number was based off five variables, would you then look at your Rogar13 Metric Number as meaningful to a single variable, because you'd have to untangle the other 4. That is essentially how cannabis cultivators view RH.... Like, in other words, that 50% suggestion could look WILDLY diff depending on where in the world you are or the season.

Keep rh to 50% or below, you must be running high RH with inadequate airflow. Especially important to have some form of airflow hitting the plant's at night, not too much or it could stress them. Too much moisture is being allowed to sit and stagnate. Remove the conditions for mold to occur and you should be fine. UVB light can effectively kill mold, especially when applied at night. 30 min doses. 280nm does not disrupt plants night cycle either. But don't mess with UV unless you do your homework prior.