Hortiscope: Reader wonders how to sterilize a black walnut tree
Q: I enjoy reading your seemingly infinite insights on trees. I have come to realize how much people care for their black walnut trees. I also am fond of the two I have in my backyard. However, I would love to have one that doesn't produce nuts. I'm talking huge crops every year! Has anyone ever figured out how to sterilize a black walnut tree?
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