I'm in ProMix HP which Is mostly peat but I believe falls under the soil category. I added some castings in the soil mix and top dressed with about an inch of coverage. I added some more ProMix about a month ago or so and did a Dr. Earth 4-4-4 tea about a month before that. I've also been adding molasses every other feeding for the past 2 weeks. It very well could be out of whack.
The plants seem to be doing exceptionally though, in my opinion at least. Middle plant is growing a little funk but other than that it's a huge improvement from last run.
I wouldn't say they are taking off and getting out of control necessarily. I noticed a few when I watered last, a bit more than I would have liked to see but I wouldn't say an infestation at all.