Ryegrass–Resistant Classes of Chemistry <BR>Accase inhibitors – Poast, Select, Axial, etc <BR>ALS inhibitors – PowerFlex, Osprey, Beyond <BR>EPSPS - Roundup <BR>Long Chain Fatty – Dual/Warrants <BR>Glufosinate amm. - Liberty <BR>PS I – Electron - Gramoxone<BR>