AQUATIC WEED CONTROL
Local conditions and application method may affect performance of this product. User should consult local extension service, agricultural experiment station, or university weed specialists, and state regulatory agencies for recommendations in your area.
Best results are obtained when product is applied to young succulent weeds that are actively growing. Application rates lower than recommended will not be satisfactory on susceptible annual weeds. For perennial weeds, the higher recommended rates should be used. Some plants and weeds, especially woody varieties, are hard to control and may require repeat applications. Application rates should be 1 to 5 gallons of total spray by air or 5 to 25 gallons by ground equipment unless otherwise directed. In either case, use the same amount of SINKERBALL per acre. SINKERBALL should not be allowed to come into contact with susceptible desirable species. If stored below freezing, it may be necessary to warm product to 40ºF and agitate before using. This does not affect the efficiency of the product. Spray equipment used to apply SINKERBALL or other products containing 2,4-D should not be used for any other purpose until thoroughly cleaned with a suitable chemical cleaner.
See label for mixing ang tank mix information application instructions.
AQUATIC WEED CONTROL
Notice to Applicators: Before application, coordination and approval of local and state authorities may be required, either by letter of agreement or issuance of special permits for such use.
Ground or Surface Application: Do not apply when wind speeds are at or above 10 mph.
Air Application: Do not apply when wind speeds are at or above 5 mph. The restrictions do not apply to subsurface applications used in weed control programs.
FOR AQUATIC WEEDS IN LAKES, PONDS, RESERVOIRS, MARSHES, BAYOUS, DRAINAGE DITCHES, CANALS, AND RIVERS AND STREAMS THAT ARE QUIESCENT OR SLOW MOVING INCUDING PROGRAMS OF THE TENNESSEE VALLEY AUTHORITY:
Use 1 - 5 gallons of SINKERBALL per acre foot. For best results, apply in spring or early summer. A second treatment may be needed when weeds show signs of recovery, but no later than September in most areas. Spray to wet foliage thoroughly. Application should be made when leaves are fully developed above water line and plants are actively growing. Apply to attain a concentration of 2 to 4 ppm.
EMERGENT AND FLOATING WEEDS
Air Application: Use drift control spray equipment or thickening agents mixed into the spray solution. Apply 2.5 – 5 gallons per acre through standard boom systems with a minimum of 5 gallons of spray mix per acre. For MICROFOIL drift control spray systems, apply in 12 – 15 gallons spray mix per acre.
Restrictions and Limitations for Aquatic Use:
Do not exceed 4.0 lbs acid equivalent per surface acre per application. Do not reapply less than 10 days after prior application. Do not apply within 1,500 feet of active potable water intakes.
Fish breathe dissolved oxygen in the water and a water/oxygen ratio must be maintained. Decaying weeds use up oxygen. When treating continuous, dense weed masses, it may be appropriate to treat only part of the infestation at a time. Other local factors such as water exchange and sediment load can also influence the dissolved oxygen level. To avoid fish kill from decaying plant material, do not treat more than one-half the lake or pond at one time. For large bodies of weed infested waters, leave buffer strips of at least 100 feet wide and delay treatment of these strips for 4 to 5 weeks or until the dead vegetation has decomposed.
Surface Application: Apply 2.25 gallons per acre in a minimum spray volume of 5 gallons mix per acre.