Good little Thrips

For years I had a spider mite problem, sometimes severe. Mostly due to lack of proper plant management but no matter what I tried they were always there. Then one day I brought some annual flowers inside, a big no-no, but in this case it was quite beneficial. I inadvertently introduced predatory Thrips in my grow room. I didn't know why at first, but soon after, the mites were no more! That was 2 years ago. Since then, the Thrips, my girls and me have a great symbiotic relationship. It's not hard keeping them under control but they MUST be controlled.
Anyway I was wondering if any of you had similar experience.
OT

I found thrips on my plants a couple weeks ago. I treat them like fungus gnats. A little pyrethrin spray controls the thrips and a pyrethrin watering works on the gnats.