Longrun 25 WG

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General Use Information:
LongRun 25 WG Herbicide is a selective herbicide for preemergence and postemergence control of certain broadleaf weeds and grasses in industrial vegetation management sites and specified nonagricultural areas.
LongRun 25WG Herbicide is absorbed through the root and foliage of plants, rapidly inhibiting the growth of susceptible weeds. For preemergence application, rainfall or irrigation is needed for herbicide activation. Length of control is a function of environmental factors such as soil type, soil moisture, temperature and amount of moisture after the application. Existing weeds or crop residue may reduce the length and level of residual control. Weed control may also be reduced due to environmental stress to the weeds at the time of the application.
Weed growth stops within hours after the application, however progress from discoloration or chlorosis to necrosis generally requires from 2 to 4 weeks. Speed of control is generally a function of weather with faster action during warmer weather and actively growing weeds. The best control is obtained when LongRun 25WG Herbicide is applied either to weeds just prior to germination or to young, actively growing weeds.
For optimal herbicidal activity, prior to application, the bed or soil surface should be reasonably even and clear of crop and weed residue. Before herbicide application, crop and weed residue can be mixed into the soil through cultivation, or removed by blowing the area to be treated. Any practices that cause disturbance of the soil surface after herbicide treatment will decrease herbicidal activity. If rainfall does not occur within 2 weeks after a preemergence application, then 0.5 to 1.25 cm of irrigation water should be applied. Do not apply more than 2.5 cm of irrigation water.
Field sprayer application: DO NOT apply during periods of dead calm. Avoid application of this product when winds are gusty. DO NOT apply with spray droplets smaller than the American Society of Agricultural Engineers (ASAE S572.1) medium classification.
Boom height must be 60 cm or less above the crop or ground.
DO NOT apply by air.

For tank mixes, consult the labels of the tank-mix partners and observe the largest (most restrictive) buffer zone of the products involved in the tank mixture and apply using the coarsest spray (ASAE) category indicated on the labels for those tank mix partners.
The buffer zones for this product can be modified based on weather conditions and spray equipment configuration by accessing the Buffer Zone Calculator on the Pest Management Regulatory Agency web site.

Mixing and Loading Instructions:
Ensure the spray system is clean and free of residues from previous applications. Fill the spray tank 1/2 full with clean water. Ensure the agitation system is operating and sufficient to provide uniform spray mixing during application and until the spray tank has been emptied. Add the appropriate amount of this product to the spray tank. Complete filling the spray tank to the desired level.
Prepare no more spray mixture than is needed for the immediate application. Avoid the overnight storage of LongRun 25WG Herbicide spray mixtures.

Preemergence Weed Control:
Apply LongRun 25WG Herbicide in a broadcast spray volume of 150 to 450 L/ha of water in a uniform application to the soil surface. Soil surfaces should be clean from crop residue and weed-free at the time of the application. If weeds, weed residue or crop residue is present, these should be removed by light mechanical incorporation or other means. Once the application has been made, the soil surface should not be disturbed.

Postemergence Weed Control:
Applications for postemergence weed control should be made in 150 to 450 L/ha of water. Use the higher water volumes if vegetation or crop residue is present. For directed sprays a spray volume of 200 L of water or more per hectare is recommended.
Best results are obtained when weeds are small and actively growing. Broadleaf weeds should be no larger than 5 to 10 cm and grasses should be no taller than 10 cm and prior to first tillering. Once the application has been made, the soil surface should not be disturbed.

Sprayer Preparation:
Apply LongRun 25WG Herbicide with spray equipment that has been cleaned and is free of pesticide deposits from previous pesticide use. Clean spray equipment according to manufacturer’s directions, see previous pesticide label for appropriate cleanup directions, or use LongRun 25WG Herbicide Spray Equipment Clean Out procedures.

Broadcast Application:
Apply LongRun 25WG Herbicide using conventional low-pressure ground spray equipment with flat fan or flood nozzles (preemergence applications only). Follow manufacturer’s recommendation for spraying pressure and boom height. Check spray equipment daily for proper maintenance and calibration.

Directed Spray Application:
Apply LongRun 25WG Herbicide as a low-pressure coarse spray in at least 200 litres of water per hectare. Follow manufacturer’s recommendations for nozzle spacing and operating pressure. Nozzles should be adjusted to adequately cover the weed foliage but minimize contact with the crop. Do not apply with hollow cone nozzles.

Spot application:
For spot applications apply sprays uniformly to the soil for preemergence weed control or to weeds for postemergence weed control. Mix the required amount of LongRun 25WG Herbicide with the recommended amount of water. For preemergence application use 10 to 20 litres per 100 m2. For postemergence application use a minimum of 20 litres per 100 m2 and add a non-ionic surfactant at 5 ml per litre of spray. If applying within an established crop use coarse low-pressure sprays and direct the spray to the soil beneath the plants. Do not allow spray to contact leaves or green stems of woody plants. Use 0.5 g/L of water. Thoroughly agitate the spray solution thoroughly prior to application.
Note: LongRun 25WG Herbicide must be only applied once per year.