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
carfentrazone (Aim EC)
Rate 2.0 to 3.8 fl oz/A
Time Preharvest desiccation.
Remarks This is a contact herbicide, use 15 to 20 gal per acre to optimize desiccations.
Caution PHI 3 days for alfalfa grown for seed
Site of action Group 14: Protoporphyrinogen oxidase inhibitor
Chemical family Triazolinone