As the buds start to dense up, the risk of mildew and rot become a greater and greater concern. The weather here has been incredibly hot and humid, contrasted with non-stop rain and these plants aren't getting a solid supply of good light when they need it most. When the sun is out, it's well over 30 degrees C, so it's either not enough or too much.
On some of my plants I'm noticing more and more bud sites that are getting destroyed by rot - interestingly, I'm seeing 2 kinds of rot. One seems to be be the standard dark grayish botrytis mold and one is whiter and puffier. On more than one affected bud, I've noticed that inside the whiter mold is a little worm! Sorry, didn't a pic of the little bugger, but definitely something watch out for. I'd like to know what the parent looks like.
On a brighter note, the buds are looking and smelling good. I may have to harvest these early and they may not get to fulfill their potential 100%, but they will still produce some fine herb!