US researchers probe glyphosate drift in potatoes

Symptoms of glyphosate contamination in seed potatoes vary by variety, and tubers sustain severe damage without exhibiting foliar symptoms when exposure occurs after bulking starts, new research suggests.

 

Weed scientist Pamela Hutchinson, with the University of Idaho Aberdeen Research and Extension Center, believes growers face greater challenges than they previously realized in identifying when seed has been marred by glyphosate drift or residue in spray tanks.