Reward® (DQT) is a liquid concentrate containing diquat dibromide that is applied as an immersion bath treatment. DQT is available for purchase through many local farm & ranch stores or through Syngenta Crop Protection, LLC. The primary goal of field studies conducted under INAD #10-969 is to evaluate the efficacy of DQT for controlling mortality in all freshwater-reared finfish diagnosed with BGD or external flavobacteriosis. The treatment regimens allowed for DQT immersion are 1) 15 – 18 mg/L for 1 – 3 hours for 1 – 3 days; or 2) 28 mg/L for 1 hour for 1 – 3 days. The Investigational withdrawal period for DQT for adult Ictaluridae and Esocidae is 5 days; all other freshwater-reared finfish have a 30 day Investigational withdrawal period; if 17MT medicated feed is used with tilapia then the longer withdrawal period needs to be followed. The investigational withdrawal periods can be incorporated into the grow-out period. No prophylactic or preventive use of Diquat is allowed under this INAD. This INAD requires new participants to be approved by the FDA Environmental Team prior to participation – this review will take 100 days. To participate in the INAD Program for DQT visit the data collecting site.
Please read the Study Protocol prior to any treatments. It contains the protocol, MSDS, and a copy of the forms to be used as a guide for collecting data that will be entered into the online INAD database. The FDA authorization letter(s) for this INAD is currently only available by emailing Bonnie Johnson.
Drug Source
Syngenta Crop Protection, LLC (often available from your local farm & ranch store, veterinary supply outlet, etc.)
P.O. Box 18300
Greensboro, NC 27419-8300
United States
- Option A: 15-18 milligram (mg) diquat per liter
- Option B: 28 milligram (mg) diquat per liter
- Option C: Repetitive Treatment dose as approved by FDA/CVM
- Option A: 1-3 hour treatment; 1-3 treatments on alternate or consecutive days
- Option B: 1 hour treatment; 1-3 treatments on consecutive days
- Option C: As approved by FDA/CVM
- 5 days for adult Ictaluridae and Esocidae.
- 30 days for all other fish species.
- No holding time is assigned for fish that have a grow-out period that exceeds 30 days. The investigational withdrawal periods may be incorporated into the grow-out period.
- If 17MT medicated feed is used during the DQT treatment for tilapia than the longest withdrawal time must be followed.
Investigator must collect mortality data throughout the 5 day pre-treatment, treatment, and 10 day post-treatment periods. Investigator should also report general fish behavior and any adverse effects relating to treatment.
- Prophylactic (preventive) treatment of fish is not allowed.
- Repetitive Treatment use must be approved by the FDA/CVM Environmental Team before this use pattern can be administered.
- Only the Reward® brand of diquat can be used for INAD treatments.
- Investigator must follow all instructions in the Study Protocol for INAD 10-969 regarding drug acquisition and handling, fish treatment and disposition, and data reporting requirements.
- Investigator must complete Facility Effluent Information Form for discharge of diquat before use under the INAD. Contact AADAP for more information.
- Drug discharge must be in compliance with localNPDES permitting requirements.