diquat (Reglone)
Rate 0.37 to 0.5 lb ai/A (1.5 to 2 pints/A Reglone).
Time Preharvest desiccation.
Remarks Use 15 gal/A or more of water carrier for ground application. Diquat is a contact herbicide.
Caution Do not harvest within 3 days of application. On thin stands of seed alfalfa use 1 pint per acre. Do not graze or feed treated forage to livestock. Do not use seed from treated plants for food, feed, or oil purposes. Desiccation is complete in 3-10 days.
Site of action Group 22: photosystem I electron diversion
Chemical family Pyridinium