Harvesting tall fescue above annual bluegrass seed heads could help reduce contamination and seed-cleaning costs. Preliminary Oregon research found that cutting at 28 centimeters (11 inches) rather than 5 centimeters (2 inches) reduced annual bluegrass collected with the crop without consistentl...
Source: [Phys.org](https://phys.org/news/2026-08-higher-annual-bluegrass-contamination-tall.html)