YES!
They hit mine before anything else. First jap beetle I see on them I spray them with Sevin and it's a non-issue. You could just preemptive spray first week of June and forget about it.
Hazelnuts are crazy hardy, I wouldn't let the beetles keep you from planting them they will grow new leaves if you miss a spraying. They have to be my favorite shrub, benefit to all types of wildlife and are almost bullet proof easy to grow.