I'm an entomologist who specializes in woodboring beetles. No need for chemical warfare here. Neoclytus acuminatus (redheaded ash borer) will only lay its eggs into freshly dead trees with the bark still on. These guys were in the log when it was milled. I assume there aren't any fresh killed trees in your shop, so once they've all emerged, they won't be able to find a suitable host and will die. There are relatively few insects that prefer dry seasoned lumber. So… Do not worry and keep that lumber.
Thanks for the input, Marc. I'll expand the post a little with pictures of the stacked lumber and what I did with it. I think this could happen to a lot of guys if they buy rough cut lumber like I do. There was just very little bits of live-edge with 1/2 or less of bark. Yet, I've smashed 30-40 of the adults.
Once I realized what was going on, with help from the Lumberjock community, especially @bugnurd, I found lots of larva in the tiny sections of thin bark. I will be very careful with this moving forward. The adults made a hot mess of the ends of a couple pieces of cherry, which I'm not happy about. I am glad to know they shouldn't spread to the larger selection of older lumber I have in my shop.
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