SKU: 19736591821
katagon herbicide

katagon herbicide Katana® Long Lasting Weed Control 50g Bottle

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Description

katagon herbicide Katana® Long Lasting Weed Control 50g BottleKatana Long Lasting Weed Control 50g Bottle Product Overview Product Type Herbicide Product Name Katana MAPP No. 20199 Active Substances Flazasulfuron Formulation Water dispersable granule Areas of Use Natural surfaces not intended to bear vegetation, permeable surfaces overlying soil, hard surfaces (railway ballast only), amenity vegetation (around) Amateur Professional Professional Application Window Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Katana® Long Lasting Weed Control 50g Bottle

Product Overview
Product Type Herbicide
Product Name Katana®
MAPP No. 20199
Active Substances Flazasulfuron
Formulation Water dispersable granule
Areas of Use Natural surfaces not intended to bear vegetation, permeable surfaces overlying soil, hard surfaces (railway ballast only), amenity vegetation (around)
Amateur/Professional Professional
Application Window
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Weeds Controlled
Wide range of broad-leaved and grass weeds

Katana® is a long-lasting, non-selective, residual herbicide for pre-emergent application, which remains active on surfaces it is applied to for up to 5 months. Katana® can be applied to a number of non-crop surfaces as well as around amenity vegetation preventing the emergence of susceptible broad-leaved and grass weed species.

It controls a broad spectrum of annual and perennial broad-leaved weeds and grasses on natural surfaces not intended to bear vegetation, permeable surfaces overlying soil, hard surfaces (railway ballast only), and around amenity vegetation. It can be applied once per year at a rate of 150g/ha.

Katana® has a limited effect on very young weeds and should be tank mixed with glyphosate for effective post-emergence control alongside the long-lasting residual activity of Katana®.

For best results the surface should be left undisturbed after application to ensure that the barrier effect created by Katana® remains active.

This 50g bottle is sufficient to treat 3,333m2 for up to 5 months.


Target Species

Katana® gives pre-emergence control by forming a surface barrier that prevents germination of a wide range of broad-leaved and grass weeds.


Instructions for use

Where to use

  • Natural surfaces not intended to bear vegetation - Areas of soil or natural outcroppings of rock that are not intended to bear vegetation
  • Permeable surfaces overlying soil - Any man-made permeable surface (excluding railway ballast) that overlies soil and is not intended to bear vegetation
  • Hard surfaces (railway ballast only) - Any railway ballast impermeable surface that is not intended to bear vegetation
  • Amenity vegetation (around) - Any areas of semi natural or ornamental vegetation, including trees (see product label for susceptible non-target plants)

When to use

Katana® is most effective when it is applied in the early to late spring before weeds the have germinated. If weeds are visible Katana® should be tank mixed with a suitable foliar herbicide such as glyphosate.


How to use

Maximum Treatments Pack Coverage Application Method Application Rates Water Volume Spray Quality
1 per annum 3,333m2 Conventional knapsack sprayer 150g/ha 200-600l/ha Medium
Vehicle mounted sprayer


  • Add half the required water to the spray tank
  • Add the required amount of Katana® to the spray tank and agitate thoroughly
  • Top-up the spray tank with water to the required level
  • Use immediately
  • For maximum persistence do not cultivate or rake the area following application
  • Clean application equipment with a diluted ammonia solution following use

Additional Information

  • A Local Environment Risk Assessment for Pesticides (LERAP) must be carried out in accordance with CRD’s published guidance before each spraying operation from a horizontal boom sprayer
  • Can only be used on natural or porous surfaces such as gravel where the user can establish that the underlying surface is soil, and railway ballast surfaces
  • Must not be applied to any non-porous man made surfaces
  • Avoid spray drift onto non-target plants
  • To avoid build up of resistance do not apply this or any other ALS inhibitor herbicide for control of grass weeds more than once per year
  • When treating around amenity vegetation do no apply near species that have been planted for less than 2 years
  • Do not allow direct spray to fall with 5m (horizontal boom and train sprayers) or 1 m (hand held sprayers) of the top of the bank of any static or flowing water body

Active Substances

Flazasulfuron

Bio-Chemical Mode of Action: Flazasulfuron belongs to the inhibition of Acetolactate Synthase (ALS) group of herbicides.

Acetolactate synthase is an important enzyme involved in the biosynthesis of branched-chain amino acids. ALS inhibitors interrupt this process causing the plant to initially become chlorotic before necrosis of plant tissues followed by whole plant death occurs.

Mobility: Flazasulfuron is a systemic penetrant which means that the active substance can be translocated downwards through the plant within the phloem (sugar conducting tissues) and upwards through the plant within the xylem (water conducting tissues).

Application timing: Residual ALS inhibitors are best applied prior to the emergence of weed species.

Resistance: ALS inhibitor herbicides pose a high-risk of resistance particularly for grass weed species including black-grass, Italian rye-grass and wild oats. To reduce the risk of resistance follow label instructions and rotate use with herbicides with differing modes of action.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
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SKU: 19736591821

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★★★★★ 4
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90% of the time I use my iPad for school. Originally, I used just a regular screen protector, but it would get dirty with smudges and imprints from my Apple Pencil, and there would be a lot of glare since I'm in a classroom most of the time, which would make it awkward to see what I was writing at times. Plus, the screen protector was too smooth so it would actually be difficult to write legibly. This product makes it a lot easier to write smoother on the iPad. I only just installed it, so I can't say much on the smear protection yet, but I can already see the reduction in glare as well. For $8, getting a pack of two of these with an install kit is a very nice deal imo. My only issue was the installation process, which could've been as much my own fault tbh, but I felt like I aligned the screen protector pretty well with the sticker, however the first time I tried installing it it was way off the center (maybe my case got in the way?). The biggest issue was using the squeegee to pop air bubbles, and this is something they don't mention in neither their instruction guide nor video, but you're supposed to used the velvet red side, not the naked white side: using the white side actually takes the grit off the protector, which is obviously something you don't want on a product that relies on it. Thankfully I have another one in reserve in case this one wears off sooner than expected.
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Reviewed in the United States on October 7, 2025
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Breanna
Lexington, US
★★★★★ 5
Perfect Paperlike substitute
Model: iPad Air/Pro 13
I’ve been using this screen for roughly two months now and I can say it was so worth it, it is rough on plastic nibs! I am going to order some heavier duty ones and see how it fairs! It works just fine ON TOP of a screen protector isn’t that great! I wanted something like paper like but didn’t want to pay that expensive price for something I wasn’t sure I was going to like. This one does the trick and gives me just enough resistance to feel more in control of my pen! It fits well just make sure to know the size if your screen I had to modify where the camera indent was but it cut just fine and looks great!
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Reviewed in the United States on May 24, 2026
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Kasey
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★★★★★ 5
Wow! So cheap and really high quality!
Model: iPad Air/Pro 13
Very nice texture, affordable, durable, easy to mount. No longer get tons of grease marks from my hands, the glare is reduced, it fits the screen perfectly, there’s no tint to the color so it doesn’t distort the image. Great product for a great price.
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Reviewed in the United States on April 13, 2026
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Dylan Moyer
Alexandria, US
★★★★★ 5
Feels like paper and makes writing fun!
Model: iPad A16 11th/10th/Air 11
I was hesitant to start using my iPad for class because I HATED how my Apple Pencil sounded hitting the screen while I was writing. This product has completely changed my mind and now I use it almost daily! I love the feel of this screen and it has lasted all semester long. It was a little tricky getting the screen on just right, and I had to use both because the first time I had a bunch of air bubbles, but the second time was perfect! I think you would probably want to get a new screen every year to ensure it still has that paper-like feel, but I think that’s totally reasonable!
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Reviewed in the United States on April 24, 2026
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Sarah N Dipity
Draper, US
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Great quality, great price, easy to apply. Has completely changed the way I use my iPad and how it feels to write on it.
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