2,4-DB HerbicidePlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

DIRECTIONS FOR USE:
2,4-DB Herbicide is recommended for selectively controlling broadleaf weeds in new pastures and lucerne. Red clover crops should be sprayed with MCPB Herbicide.
Avoid application prior to expected heavy rain.
2,4-DB Herbicide should be applied as soon as young clovers or young lucerne have developed one and preferably two trifoliate leaves. Where more than 50% bare ground is exposed the spraying should be delayed until the vegetation provides a more complete cover, to reduce the possibilities of root absorption. Weeds should be small and actively growing at treatment. Established lucerne stands can be sprayed but some crop suppression may occur. Heavy grazing prior to spraying will minimise damage.

APPLICATION METHODS
2,4-DB Herbicide can be applied using conventional ground or aircraft spraying equipment. Flush equipment thoroughly with clean water after use. Decontaminate before using on plants that are sensitive to 2,4-DB Herbicide. Crops susceptible to 2,4-DB Herbicide include, but are not limited to: all brassicas, beans, flowers, fruit trees, lupins, ornamentals, potatoes, shade trees, squash, sunflowers, tomatoes, vegetables, and vine crops.

Boom spraying: Use 100 -200 L/ha water applied with at least a medium spray droplet size category as defined by the BCPC or the ASABE (S572). To minimise off-target drift do not apply when wind speed is less than 3 or more than 20 kilometres per hour as measured at the application site and do not apply during surface temperature inversion conditions at the application site.

For difficult-to-control perennial pasture weeds use 300 L/ha water to obtain more complete coverage.

Aerial spraying: Use 60-100 L/ha water applied with at least a coarse spray droplet size category as defined by BCPC and ASABE (S572). To minimise off-target drift do not apply when wind speed is less than 3 or more than 20 kilometres per hour as measured at the application site and do not apply during surface temperature inversion conditions at the application site. Flush equipment thoroughly with clean water after use.

IMPORTANT: In order to select the appropriate nozzles for the required spray quality and to operate the equipment to minimize spray drift, this product must be applied in accordance with The New Zealand Standard for the Management of Agrichemicals (NZS8409).

MIXING:
Pour the measured quantity of 2,4-DB Herbicide into the partly filled spray tank and add the remainder of the water. Agitate thoroughly during filling.
Cleaning spray equipment: Rinsing
After using 2,4-DB Herbicide: Empty the spray tank completely and drain the whole system. Thoroughly wash inside the unit using a pressure hose. Drain spray unit and clean any filters in the tank, pump, lines, hoses and nozzles.
After cleaning the spray unit as above, quarter fill with clean water and circulate the water through the pump, lines, hoses and nozzles. Drain and repeat the rinsing procedure twice.
Discard rinse water on land already sprayed or on wasteland away from desirable plants and water sources.
Decontamination
Before using equipment with other products sensitive to 2,4-DB Herbicide: Wash the tank and rinse the system as above, then quarter fill the tank and add a standard alkali based laundry detergent at 500g (or mL)/100L of water and circulate through the system for at least 15 minutes. If using a concentrated laundry detergent use 250 g (or mL)/100L of water. Do not use chlorine based cleaners. Finally, flush the system with clean water and allow to drain.
Cleaning water should be discharged onto a designated disposal area, or onto unused land away from desirable plants and water sources.

WITHHOLDING PERIODS
It is an offence for users of this product to cause residues exceeding the relevant MRL in the New Zealand (Maximum Residues Limits of Agricultural Compounds) Food Standards.

Except for animal safety reasons no withholding period is required when used as directed.
2,4-DB Herbicide is a phenoxy carboxylic-acid herbicide (Group O1). Some naturally occurring individual weeds may become resistant when excessive use of the same herbicide occurs. To maximize the effectiveness of herbicides, products containing alternate modes of action should be used in the spray program. Consult http://resistance.nzpps.org/ for alternate modes of action and the details of resistance management strategies (if any) for the crops listed on the label.