Hey Rhaps, I came across a tip and have been trying it out for a couple of months. About once a week I spray all the brug foliage with the hose, a good firm dousing, trying to hit both sides.
The lady that posted this idea claims that the "rain" disrupts the life cycle of the spider mites. They do love the weather to be warm and dry! In any case, although we have not exactly had as warm or dry a fall as usual, I haven't seen a single spider mite problem since I started doing this.
Give it a try - now that you have actually had some rain, you won't feel too guilty about spraying a little water for a few minutes, right?
