Reminder: For very high-VFL (variety fluorescence level) perennial ryegrass samples, we will not issue reports based on fluorescence because it is inconclusive. Instead, we do a 400-seed direct grow-out test using similar procedures to the USDA method. Right now, these are the high-VFL varieties to which this procedure applies: PST-2YUR (TetraGain), Quartermaster, Kentaur, IS-OS (Ignite), WVPB-XB-2, and WVPB-XP-6. Please contact us for any questions.