I've got a white fuzzy growth on top of the soil in 4 or 5 cells of my seedling boxes. It appears to begin right at or on the popcicle stick. Do I have a problem
thats some sort of fungi many people make fungi culture slants with sterile toung depressors jamed down into the agar. even non cellulose eating fungi will crawl all over them. if you wanna have some fun, try growing it out on a petri dish
if it bothers you, like alabamajack said, you can knock it out with some peroxide or weak chlorine solution.
I took the trays off the wicking pads yesterday to dry out and left the dome off and problem solved. They definately needed to dry out a bit, but I'm at 60% pooped up in a week, Most of my favorites, so I'm happy camper