A monument to the world’s tallest corn stalk stands at the Washington County Fairgrounds, and soon another will, go up at the Iowa State Fair. Wayne Zieser is son in law to the late Don Radda. Radda grew the record in 1946. Zieser says all the coverage will likely spur more interest in competition corn growing. Zieser says he’s having Evan’s Welding in Washington make the individual pieces of the structure. He says he’ll take it to his shop at home to assemble the monument. Zeiser says construction on the project started yesterday.