This is what the afflicted area looks like after sunlight treatment
View Image
View Image
View Image
View Image
Not really sure what to think, I guess I'll see if the fungus still springs back after my latest attempt at treatment. I found botrytis on a plant today for the first time, hopefully the last time too. If the weather does what they say its gonna do seems like everything I've got left should be caked in resin and ready to harvest in a week or so.
Try applying a copper foliar spray like copper sulfate. The product I use is liquid biomin copper.