Controlling Puncturevine Weed and Liquidambar Tree Seeds

We tackle two prickly topics: the spiky, caltrop-like seed balls of puncturevine weed and the “sputniks” of liquidambar (sweet gum) trees. Yes, those sharply pointed spheres that fly in the autumn breeze do resemble Eisenhower-era, low-earth orbiting Russian weapons of no destruction.

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