The pistols will turn brown naturally as the Calyx swells. When did you spray them? Try to avoid spraying during daylight hours..I recently foliage sprayed bt worm killer and light feeding . I noticed the following day that some of the flowers looked dry n had burnt pistols on then . Does anyone know if the pistols will regenerate ? I’m about 4 /5 weeks into bloom . Perhaps it’s all in my head as well . View attachment 4201614View attachment 4201615 View attachment 4201616