After finding clear sections of bud rot on all the autoflowers I harvested earlier in the summer, I’m paranoid about bud rot any time I see any bud that looks at all dark. I’ve been careful to keep my remaining outdoor photoperiod plants from getting wet since they started flowering, but the grayish tinge of these buds from a distance and their dark spots when zoomed in to the photo below have got me nervous:
Upon further examination, I don’t think it’s bud rot after all. Every flower on the plant looks this way, and it doesn’t look like the brownish/gray funk that I saw on previous plants that were clearly suffering from bud rot. In this case, it looks like the dark color is contained in what I assume are the newest sugar leaves just starting to form. I’m hoping that’s just normal for this strain when exposed to some cooler night temperatures outdoors.
I see you are growing your plants under pine trees! I might suggest removing dead material from your plants. That material begins to decay and the decay process is what molds thrive on.