Terbaquest 875 WGPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

GENERAL INSTRUCTIONS

Terbaquest 875 can be used to selectively control weeds in the crops listed in the directions for use table and on fallows prior to establishing crops as directed in the Fallows section below.

Pre-Emergence Application:

• When applied pre-emergence, the product is mainly absorbed via the roots. Weeds buried by cultivation may not be effectively controlled. Heavy rainfall on light soils may cause movement of the herbicide out of the weed seed zone, resulting in reduced weed control.

• Do not apply to recently burnt stubble/trash. After burning, rainfall or cultivation is required to allow Terbaquest 875 to reach the soil and not be irreversibly bound by ash.

• Sufficient rainfall (20 to 30 mm either as rainfall or irrigation) within 2 to 3 weeks of application is necessary to make the product effective. Weeds may germinate and emerge before being controlled by Terbaquest 875, but a delay in rainfall for an extended period may result in weeds germinating from depth and surviving.

• Where soil has a high potential for leaching, heavy rainfall between application and crop emergence may result in crop damage from movement of herbicide into the crop seed zone.

• In flood or furrow irrigation situations, complete and continued activation of the product may not occur due to a thin band of dry soil on the surface during or after irrigation. Mechanical incorporation after application, using light harrows to incorporate the product into the soil not more than 4cm deep is required to ensure the irrigation water activates the product. Always apply the product to an even un-ridged seedbed.

• Dense weed populations and multiple germinations (especially Wild radish) may require both a pre-emergent and post-emergent herbicide treatment (only one being Terbaquest 875) to give acceptable control.

INTEGRATED WEED MANAGEMENT STRATEGY FOR TT CANOLA

• The use of this product in TT canola is subject to the current approved Integrated Weed Management Strategy for the use of triazine herbicides in TT canola. This strategy encompasses integrated weed management, specific management of crop plant volunteers and outcrossing to other plants, and triazine herbicide residue management (agronomic and environmental).

• Compliance with registered label directions and adoption of the principles outlined in the strategy will assist with the implementation of crop management practices that minimize the development of herbicide resistance in treated weeds, reduce the levels of triazine residues in the environment, and manage volunteer plants and outcrossing. Copies of the strategy are available from Conquest Crop Protection Pty Ltd.

• Specific expert advice should be obtained from an appropriate agronomist, consultant, chemical supplier, or Departmental adviser for adapting strategies to local conditions.

To minimize herbicide resistance:

• Avoid dry sowing in heavily weed-infested paddocks. Wait for weed germination after the opening rains in weedy paddocks. Use a pre-plant knockdown or cultivation. No weeds should be allowed to survive at this stage.

• Avoid using Terbaquest 875 if the area to be treated had a triazine herbicide applied to it last season.

• Watch for escapes, especially in paddocks with a long history of Group C herbicide use.

• Avoid using Group C herbicides in consecutive years.

Resistant Weeds Reporting:

• Growers should collect plant or seed samples where weeds that are normally susceptible to atrazine, simazine, and terbuthylazine may be resistant, get them tested, and seek professional advice.

MIXING:

• Do not mix or load within 20m of any well, dam, intermittent, or perennial stream. Partially fill the spray tank with water and maintain agitation while adding the required quantity of Terbaquest 875. Agitation should continue after filling and during spraying. If spray is allowed to stand, agitate thoroughly before resuming spraying.

COMPATIBILITY:

• This product is compatible with a range of other herbicides and adjuvants. Always refer to the label for specific instructions and conduct a small-scale compatibility test before tank mixing with other products.

APPLICATION:

• DO NOT apply under weather conditions, or from spraying equipment, that may cause spray to drift onto nearby susceptible plants/crops, cropping lands, or pastures.

• Apply by ground boom in a minimum of 50L/ha. Use only COARSE spray quality according to ASAE S572 definition for standard nozzles.

Pre-Sowing Application:

• Apply to moist soil or when rain is imminent and prior to germination of weeds up to a week before sowing. The soil should be free of excessive clods, trash, and deep furrows. Crop safety relies on crop seeds germinating below Terbaquest 875 treated soil.

Post Sowing Pre Emergence Application (PSPE):

• Pulse crops must be sown to at least 5cm. Apply within 2 days of sowing to soil left relatively flat by the sowing operation.

Post Emergence Application:

• Terbaquest 875 can be applied to Triazine Tolerant (TT) canola up to the 6-leaf stage and sorghum up to 5-7 leaf stage of the crop. Always add Hasten at 500nnL/100L water.