“Older, river towns have lots of black walnuts,” Struck said. “Settlers just went out in the woods and dug one up when they needed a tree.”
When Mankato’s leaf curbside collection starts later this month, Street Superintendent Jim Braunshausen’s department will use a street vacuum to suck up any walnuts left behind by squirrels.
“We mix them in with the volume of leaves. They are stockpiled until they rot, then used as compost in our city parks,” Braunshausen said.