An empty plastic coffee container. Fill it about 1/3 with water. Put a good squirt of soap in it. Go from bush to bush twice a day and knock them into the container. Flush the dead beetles down the toilet. This way there is very little chance of the eggs from the females to get to the ground.

I haven't figured it out. I don't think there is a reliable protective to spray. I am going out 2x daily and spot spraying with Bayer Advanced Rose and Flower Insect Spray. It helps, but if you have an huge infestation as I usually do, you won't keep up, but you will kill a lot of them.

This weekend I will try BeetleJus for the first time which is supposed to be an organic protective spray. It has good reviews but I don't think anything on the market will stop the infestations I have here. This year I have about 20% of the usual infestation here because of drought, but it rained yesterday and today, so this weekend I am bringing out more armament.