I'm hoping I caught them before they did too much damage. It's just the first year, but the Saaz is really putting out a lot of burrs, and I'd hate for it to have done so well just to have it succomb to these lousy pests.
We've been having a pretty hot stretch of weather, with little-no rain, so that probably explains the rapid population increase. In hindsight, I think I recall reading somewhere that the use of sevin can be problematic; it doesn't do much for spider mites and kills their natural predators. I wonder if my use of Sevin dust to control the Japanese beetles didn't factor into it.
Anyway, the forecast says it's going to remain hot and dry for at least the next week, so I'm definitely going to have to stay on top of this for a while.