I wasn't criticizing you; if the bags worked better for me, I would go back to them. Just won't think what goes on inside. The real shame is that there are thousands, millions people just ignore; only certain gardeners worry about them.
My neighbor who moved used to wet down his hisbiscus?, can't remember the plant, and dust with Food grade diatomaceous earth he got at Lowe's. I think it's more of a repellant. I guess I would rather have as many dead as possible rather than repel them.
Ducks, chickens and turkeys will eat them but few have those and they only get a fraction. Other than that and maybe a parasite, there are no natural predators.
We've thought about getting chickens to control just the ticks in our yard, but it wouldn't work with us. Also, most of our beetles are on plants, trees and bushes, and not so much on the grass. I hate using poison, because of our dogs and various wildlife.