Bad year for asparagus beetles?

Having had increasing trouble with asparagus beetle over the years, I was amazed that this year I can hardly see any. Last year we squeezed lots every day, but I would be surprised if that was the reason they have nearly all gone now. I've seen some little predators here and there, but so I did last year, and they barely made an inroad then.
Is it the funny weather this year - what are other people's experiences?
Love, Annemieke.

 

I get them on my plants every year but they're easier to control physically when the weather is cooler. I'm not keen on spraying food plants, but in a really bad year, I treat with an insecticide once I've finished picking. It only takes one treatment and leaves the plants clean for the rest of the summer.