My parents grew chestnuts on their farm, when my father was still alive. They were mostly American, with a bit of Chinese for blight resistance, and did pretty

My parents grew chestnuts on their farm, when my father was still alive. They were mostly American, with a bit of Chinese for blight resistance, and did pretty well. I've long wondered if regular breeding might have done the trick, if we'd spent the past century trying. Keep back-breeding for more American properties, but resistant, too. For my parents, tent caterpillars were more of a problem.