Michelin has introduced a tyre for use on high-horsepower tractors, sprayers and treatment machinery used for managing crops grown in rows, such as potatoes, carrots and maize.Previously available only on the North American market, the YieldBib tyre is narrower than those normally fitted to 250+hp tractors and comes with stubble-deflecting lugs and an anti-stubble belt in the tread area that is claimed to extend the tyre’s life by preventing piercing, chipping and gouging from stubble.