SKU: 45519580125
residual grass herbicide

residual grass herbicide Nonanoic Acid, Oxyfluorfen Industrial Herbicide

Sale price$20.58 Regular price$22.87
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

residual grass herbicide Nonanoic Acid, Oxyfluorfen Industrial HerbicideGroup 14 Herbicide Cortex Duo is a non selective knockdown and residual herbicide featuring Dual Control Herbicide Technology to provide control of seedling and young broadleaf and grassweeds and suppression of established weeds and perennial species. Cortex Duo is registered for use in and around paths, driveways, roadsides, sheds, gardens, amenity horticulture areas, protected cropping situations, nearby nursery stock, orchards and vineyards, fallow

Group 14 Herbicide

Cortex Duo is a non-selective knockdown and residual herbicide featuring ‘Dual Control Herbicide Technology’ to provide control of seedling and young broadleaf and grass
weeds and suppression of established weeds and perennial species.

Cortex Duo is registered for use in and around paths, driveways, roadsides, sheds, gardens, amenity horticulture areas, protected cropping situations, nearby nursery stock, orchards and vineyards, fallow soils and forestry.

Is also registered for the control of Moss and Algae in a range of situations including gardens, paths, rockeries, tiled roofs, walls, driveways and around buildings.

Cortex Duo contains 525g/L Nonanoic Acid and 15g/L Oxyfluorfen and is an emulsifiable concentrate formulation.

Key Features:

  • Contains Dual Control Technology, multiple modes of action, reducing potential weed resistance issues.
  • Very broad spectrum of registered uses. Can be used is most weed control situations.
  • Non-glyphosate option for knockdown of weeds.
  • Rapid action, visible effects occurring within hours of treatment.
  • Provides residual control – up to 3 months.
  • Safe for use around established trees and ornamentals, as long as spray drift doesn’t occur.
  • Low chemical scheduling – S5.
  • Effective on Moss and Algae as well as weeds.
  • Available in multiple pack sizes to suit all requirements and applications.

Maximising Performance:

  • Spray to completely cover weed surface.
  • Perennial weed species may require repeated applications to obtain long term control. Repeat spray after 14 days if required.
  • Avoid application if weeds are wet.
  • Avoid application if rainfall is expected before spray deposits dry on plant surfaces.
  • Don’t irrigate or water treated area for 24 hours to achieve maximum results.
  • Don’t irrigate to the point of run-off from soil for at least 3 days after application.
  • Avoid application if heavy rains or storms that are likely to cause runoff from soil are forecast within 3 days of application.
  • Avoid spray contacting or drifting onto desirable plants.
  • To control weeds in Protected cropping situations apply on each side of the crop row taking care not to allow spray to contact any of the crop foliage.

 

If applying via boom sprayer, the following requirements need to be met:
  • Spray droplets should not be smaller than a COARSE spray droplet size.
  • A buffer zone of 10m is applied for boom height above the target canopy of 1m or lower (but not 0.5m or lower)

 

Mixing:

  • Half fill spray tank and commence agitation. Slowly add required amount of Cortex Duo. Top up with required quantity of water. Agitate well before commencing spray procedure. Do not mix more than is needed.

 

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 45519580125

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K.P.P.
Alexandria, US
★★★★★ 5
Absolutely EXCELLENT customer service
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This little guy is so freaking cute and is very well made. The squeak is loud but not overly so, and the construction is really sturdy. Itis stuffed well enough it can be thrown for an impromptu game of fetch. I imagine, if you are a dog, it would be fun to chew on all the different tentacles and drag all over the place. I ordered it as a gift for my brother's pit bull, in the full knowledge it wouldn't survive the holidays, but hoping. Sadly, when it arrived it was so small! Definitely too small for such a big boy, and not even large enough for my kid's rottie/collie mix. So I did what you do in these situations: I initiated a return, stating my issue in the appropriate place To my utter shock, an hour later I had been issued a full refund with the reason they listed being they had sent me the wrong item. I do not even have to send the toy back! I didn't ask for this; it didn't occur to me to even consider it. They just did it on their own. Which is why, despite the item I received being too small, made me want to run over here and leave a great review To make sure the toy finds a loving home with a little woofer, we'll be donating it to one of the smaller local shelters. I'm sure it will be very happy with its new family
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Reviewed in the United States on January 9, 2026
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Jennifer Stenson
New York, US
★★★★★ 5
Perfect for active dogs
This is a must-have if your dog loves to fetch. It throws the ball far with very little effort and keeps your hands clean—no more slobbery chuckit balls. Lightweight, durable, and makes playtime much more fun (and less tiring for me!).
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Reviewed in the United States on April 9, 2026
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John J
Omaha, US
★★★★★ 5
Way better than the M size for us
Like most people that have dogs I first went with the M size or Tennis ball size (about 2.5") chuckit for my 65-70 lbs Lab. After having that for a while and my dogs' evolution from liking to chase the ball to wanting to catch it, I started seeing how the M size could cause some life threating problems for my pup. I was on the fence for several weeks when I came across this option that included a 3" ultra ball as well as a 3" fuzzy tennis ball like ball. These balls can fly so much farther with less effort and my furry friend seeming to like them more than the 2.5 inch. It also seems to fit their mouth better allowing them to enjoy 'the game' (you lost by the way) much more. If you have a larger dog or your dog has a big mouth, please trust me when I say skip the 2.5" M size balls. You and your dog will haves much more fun with this 3" size
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Donna Sue
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★★★★★ 5
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This is great! I have a blue healer that loves it. She will play fetch with the ball all day long. The launcher is easier on my shoulder. I can throw the ball twice as far and when she brings the ball back I can grab it with the launcher without touching a spit covered ball. Awesome buy!
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Stephanie Straub
Natrona Heights, US
★★★★★ 5
Good find
Chuckit products are great, and was glad to find this for the Pitties that I pet sit for
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Reviewed in the United States on October 23, 2025

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