They are devouring my clematis, climbing hydrangea and I am finding them on my whirling butterfly guara plant (Bee blossom) I found eliminating most of the plants/trees that they love helped to lessen the amount of beetles. I use a hand sprayer with a few tbsp of blue dawn dish soap, and some powdered garlic, fill with water...spray the plants liberally twice a day. It doesn't harm the plants but the beetles go belly up and drop to the ground within minutes of spraying. They also fly out of there fast! *you can omit the garlic, it's the blue dawn that seems to work. I had hundreds on my climbing hydrangea and after 3 days of spraying, I found 2 today. I just wish I had started spraying soap solution before the damage was done....next year I will proactively spray when I see the first beetle and perhaps save the foliage from so much damage.
They are devouring my clematis, climbing hydrangea and I am finding them on my whirling butterfly guara plant (Bee blossom) I found eliminating most of the plants/trees that they love helped to lessen the amount of beetles. I use a hand sprayer with a few tbsp of blue dawn dish soap, and some powdered garlic, fill with water...spray the plants liberally twice a day. It doesn't harm the plants but the beetles go belly up and drop to the ground within minutes of spraying. They also fly out of there fast! *you can omit the garlic, it's the blue dawn that seems to work. I had hundreds on my climbing hydrangea and after 3 days of spraying, I found 2 today. I just wish I had started spraying soap solution before the damage was done....next year I will proactively spray when I see the first beetle and perhaps save the foliage from so much damage.