Tips For Use
General Instructions:
- Symptoms of weed control are a gradual yellowing of foliage and seed heads followed by desiccation. Initial symptoms may take 7-10 days to be noticeable, with full effects occurring 4 to 6Â weeks after treatment.
- Sempra Herbicide should be applied to actively growing weeds when new growth has reached a minimum of 5cm of new leaf growth for Nutgrass and Navua sedge, ensuring the top of the plant is clear for good spray contact or 2cm for Mullumbimby couch.
- Apply follow-up treatments if sufficient new growth warrants re-treatment.
- For good control of Navua sedge, follow-up treatments must be applied 8-12 weeks after the first treatment. Irrigation or rainfall within two hours of application will reduce control. Drought stress after treatment may also reduce control.
Precautions:
- Re-entry Period: Keep people and pets off treated areas until the spray solution has dried.
Mixing:Â
- Nufarm Sempra Herbicide is a dry flowable granule that disperses in water.
- Add the measured amount gradually to a part-filled spray tank while maintaining continuous bypass agitation.
- Add the surfactant near the end of the filling process to avoid excessive foaming.
- Remove the hose from the mixing tank immediately after filling to avoid siphoning back into the water source.
- If allowed to stand, ensure that the mixture is thoroughly agitated before recommencing spraying.
- Use the mixture within one day.
Restraints:
- Do not apply more than 200 g/ha per season for Turf, Sugarcane, Corn/Maize, Sorghum, Cotton and Pasture.
- Do not apply after the onset of frosts.
- Do not apply this product through any type of irrigation system.
- Do not apply if heavy rain is expected within at least 48 hours.
Sempra Halosulfuron 750wg Herbicide is compatible with Glyphosate, Diclofop-Methyl, Dicamba/MCPA and Bromoxynil/MCPA mixtures and amine formulations of 2,4-D. Read and follow all label directions, restraints, plant-back periods, withholding periods, regional use restrictions and safety directions for the tank mix products.
Tank mixing with paraquat or ametryn may result in reduced weed control.
Organophosphate insecticides should not be tank-mixed or applied 7 days prior or 3 days after application of Sempra Herbicide, as severe crop injury may result.Â
Plant Back Intervals:
- Crop Plant back interval after the last application of Nufarm Sempra Herbicide;
- Corn/Maize, Sorghum, Sugarcane: 2 months
- Wheat, Pastures (Brachiaria decumbens, Brachiaria humidicola, Setaria spp., Pangola spp.): 3 months
- Cotton: 4 months
- All other crops (except sugarbeet): 24 months
- Sugarbeet: 36 months
Protection of Crop, Native and Other Non-Target Plants:
- Avoid spraying of non-target vegetation.
- In turf, do not use clippings from treated areas for mulching around vegetable or fruit trees.
- 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.
- After spraying, the first flush irrigation tailwater or stormwater run-off from land treated with Sempra Herbicide should be prevented from entering waterways.
- Where farms do not have the capacity to retain run-off, do not irrigate to the point of run-off for at least 6 days after application.
Protection of Livestock:
- Do not feed grass clippings from treated areas to poultry or other livestock or allow grazing of treated turf.
Protection of Wildlife, Fish, Crustaceans and Environment:
- Nufarm Sempra is very highly toxic to duckweed.
- Do not contaminate streams, rivers or watercourses with the product or used containers.
Storage:
- Store in the closed, original container in a cool, well-ventilated area.
- Do not store for prolonged periods in direct sunlight.
Safety Directions:Â
- Harmful if swallowed.
- Dust will irritate the eyes.
- Avoid contact with eyes and skin.
- Wash hands after use.
First Aid:
- If poisoning occurs, contact a doctor or Poisons Information Centre. Phone Australia 131 126.
- For further information, refer to the Safety Data Sheet (SDS).
This information and product advice is not intended as advice or recommendations for any specific use or circumstance. You should seek specialist advice before using any product. Always follow the manufacturer’s guidelines. Specialist Sales liability is limited.​
Withholding Period
Withholding Period Details (WHP):
Harvest:Â
- Turf: Do not use clippings from treated areas for mulching around vegetables or fruit trees. Do not feed grass clippings from treated areas to poultry or other livestock.Â
- All other crops: Not required when used as directed.Â
Grazing:
- Sorghum: Do not graze livestock or cut for fodder or forage for four (4) weeks after treatment.Â
- Turf: Do not allow grazing of treated turf.Â
- Pasture: Do not graze livestock or cut for fodder or forage for ten (10) weeks after treatment.Â
- All other crops: Not required when used as directed.
Melissa Reid (verified owner)
It doesn’t get and any better than this product! Not only does it kill the nut grass, but other weeds as well! All you do is spray and walk away! It can take up to 2 weeks to take effect, and you don’t need to remove the nut grass or weeds by hand as it disintegrates to nothing! I highly recommend this product to anyone, you will not be disappointed!
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Derek (verified owner)
My Nutgrass weeds are all a nice unhealthy yellow!
The price was right; 100gm goes a long way and delivery was quite quick.
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HH
This is a fantastic product that works really well on nutgrass. We have sprayed it in my garden and the nutgrass is yellowing and dying and most of my other plants are unaffected.
Fast despatch and shipping!! Will definitely buy again. Great information on the website.
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Gavin (verified owner)
Easy to use product in conveniently sized container.
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Ros Elston
I’ve used before and with 2 or 3 applications, nut grass is virtually eliminated. But you still remain vigilant.
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Tom Cole (verified owner)
Great service, so easy to deal with , the product definitely did the job .
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