Pluots in the St Louis Area

Same here, I have 16 different apple varieties, and they seem to like HC much more than others.

I have heard about how milky spore can be an effective way to control J beetles. MS is a bacterium that infests and kills grubs of J beetles (and maybe other insects) while they are in the ground. No grubs, no subsequent beetle infestation. But, that doesn’t address beetles that might migrate from other areas. And since moles like to feed on grubs (and tree bark and roots), it could indirectly help protect your trees.

I’ve considered trying it, but it can take a couple years to get going, and isn’t cheap.

Some folks like @clarkinks use lures and traps attached to buckets to help control the beetles once they start their attacks: