Sometimes I spray my knockouts when it is a bad year. I hate to see the beetles destroy the flowers!!! GRRR!!! Neighbor has beetle traps in their yard.. They don't help either!!!

There is just about no way economically feasible or environmentally friendly that you are going to be able to circumvent JB's and they will come from 20-30 miles to your garden but Knockout should not have a problem with them.

I have had them eat a whole bed of roses and leave Knockout alone. Not sure why, but they may not be attracted to it because of the lack of fragrance but they sure love crabapple trees and crape myrtles and my other roses. I have found that allowing the poke salet to grow in my rose beds saves my roses. They much prefer it over the roses.

JBs seem to travel in areas where there are many and multiple blooming plants and crape myrtles are a main attraction followed by crabapples next, and roses probably when they have devoured everything else around.

They have actually destroyed every bloom on 24 crape myrtles and foliage on 5 crabapples for me in short time. They then get roses nearby while their offspring move on to my neighbors.

Patricia, That is just awful!!! They eat my climbing hydrangea leaves and clematis and they look just terrible.