Sucks I know, lost better than a fist sized main cola top bud on my Grapey Walter last grow. She still gave up a shit load of quality but, DAMN Got toasted and forgot to check dehumidifier for about 12hrs. and bam, 74% humidity. Didn't know it till chop.
Yeah, that won't happen that fast from 12hrs. Maybe it is over 70% more often than that or bad airflow. Good luck.
Well, both of you may be and probably are right. I was keeping the "groom" outside the tent at 50% for drying, the tent stayed low to mid 50's with flaps partially opened. Had a 6" fan going in tent, had to use the other outside for drying, should have kept a lower constant humidity but was all a struggle. Nothing else effected, I figured that spike at least started it, with that being the biggest bud. I also scratched my head cause the spores had to have came from somewhere?
Mold spores are everywhere, we are breathing them in right now I imagine. VPD is a big factor in mold and bud rot, but overall plant health also plays a big role. Plants have a natural immune system and pathogens take hold when they are weakened. More info in the ppdcast, and other great topics covered by KIS organics.
