Any ideas?

If plants develop botrytis (grey mold/bud rot) during the latter stages (last month) of the flowering cycle, what method should be implemented, in an attempt to eliminate botrytis and maintain the integrity of your finished product?

cut the rot out and trow it away then dry the other part asap and fast so you can save some of it.

Lower the humidity to below 40% and drop temp to 70* kill fans get rid of visible mold finish grow

All of the above, get a dehumidifier or your harvest will make you cry.