I'm guessing he is on the Great Plains region of the country or further west. They use them out there for weed control in fallow ground. I never really understood how a rod weeder worked but have seen them.
 
https://www.google.com/imgres?imgurl=http://photos.yesterdaystractors.com/gallery/uptest/a273722.jpg&imgrefurl=https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd%3Dimplment%26th%3D298042&h=516&w=688&tbnid=OG88IekfttdahM&q=rod+weeder+image&tbnh=104&tbnw=139&usg=AI4_-kTjYlUSLHNpqqffNqWzOTR8GJrS1g&vet=1&docid=dMuidH0ZaprAPM&sa=X&ved=2ahUKEwjk7K-ZqrD4AhVYkokEHfFWAYoQ9QF6BAgDEAg

Picture of a rod weeder. The rod is the shaft at the rear of the machine turning opposite direction of tires. Brings weeds up and out, laying them on the surface to wither and die. The rod is driven.
 
Yesterday's Tractor Forums

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top