Xtend Flex logo
Xtend Flex logo

XtendFlex® cotton

XtendFlex® cotton is the first cotton trait developed to be tolerant to over-the-top applications of glyphosate, dicamba and glufosinate-ammonium herbicides, providing flexbility to manage a wider-spectrum of difficult-to-control and resistant weeds in-crop.

XtendFlex cotton is not currently commercially available. It will be released commercially once all relevant regulatory approvals are in place.

  • At a glance

  • Applicator Training & Events

  • Applicator Training Videos

Product Type
Biotechnology Traits


Introducing XtendFlex Cotton

XtendFlex® cotton


Bayer is gathering further evidence of safe and effective use under permit to support an application for approval from the Australian Pesticides and Veterinary Medicines Authority (APVMA) for the registration of XtendiMax 2 Herbicide with VapourGrip Technology and Roundup Xtend 2 Herbicide with VapourGrip Technology products.XtendFlex®, Bollgard®, Roundup Ready®, Roundup Ready Flex®, VapourGrip®, Plantshield®, Movento® are registered trademarks of the Bayer Group.
Xtend Flex Cotton

Why do we need the XtendFlex cotton system in Australia?


A key component of any integrated weed management system is using a variety of tools to manage weeds. This is particularly important as weeds become more difficult to control and herbicide resistance becomes more prevalent.

XtendFlex cotton will allow growers to use different herbicides over-the-top of their cotton, increasing diversity of their system and helping to manage difficult to control and resistant weeds in-crop.

XtendFlex Cotton

Ongoing Research

The XtendFlex cotton system, once approved, will provide growers with a valuable tool to manage difficult-to-control weeds. It is a simple system; however, a significant amount of work is required prior to launch. All relevant regulatory approvals and stewardship package requirements will enable most effective utilisation of this technology. Bayer will continue to work with partner organisations and industry over coming years to ensure product success.

Further announcements on trials and demonstrations will be available in time.

Upcoming XtendFlex Cotton Field Days

This page will be regularly updated with details on field days showcasing XtendFlex cotton. 

You can also contact your local Bayer TBM to discuss other opportunities to see XtendFlex cotton in the field. 

Date Time Location RSVP
February 1, 2022 3:30pm Jerilderie NSW

To RSVP, please email:
Luke Sampson -

February 2, 2022 9:30am Moira Farm located at Forest Hill

To RSVP, please email:
Michael Fing -

February 10, 2022 9.00am Locharba, Narrabri NSW To RSVP, please click here and complete the registration form
February 16, 2022 9.00am DPI Trangie Research Station

To RSVP, please email:
Luke Sampson -

Postponed   Kensington Park, 669–677 Daandine Nandi Rd
Ranges Bridge QLD

To RSVP, please email:
Richard Jackman -

Upcoming XtendFlex Cotton Spray Applicator Training Sessions

As part of Bayer's commitment to whole of system stewardship, the spray applicator training will be a requirement for:

- Technology User Agreement (TUA) signers;
- All on-farm staff responsible for spray applications (including mixing/handling); and
- Any spray contractor that applies XtendFlex Cotton System products over-the-top (OTT) of XtendFlex cotton varieties, once approved by the APVMA.

Each training session covers theory and practical topics. 

CLICK HERE TO REGISTER - Registration is essential

Upcoming training sessions are listed in the table below.

Date Location Venue Time
July 18, 2022 Walgett, NSW   8:45AM – 2:30PM
July 19, 2022 Rowena, NSW   8:45AM – 2:30PM
July 20, 2022 Collarenebri, NSW   8:45AM – 2:30PM
July 25, 2022 Gunnedah, NSW   8:45AM – 2:30PM
July 26, 2022 Boggabri, NSW   8:45AM – 2:30PM
July 27, 2022 Gunnedah, NSW   8:45AM – 2:30PM
July 28, 2022 Mullaley, NSW   8:45AM – 2:30PM
August 1, 2022 Narrabri (Locharba), NSW   8:45AM – 2:30PM
August 2, 2022 Wee Waa, NSW   8:45AM – 2:30PM
August 4, 2022 St George, QLD   8:45AM – 2:30PM
August 5, 2022 Dirranbandi, QLD   8:45AM – 2:30PM
August 8, 2022 Goondiwindi, NSW   8:45AM – 2:30PM
August 9, 2022 Toobeah, QLD   8:45AM – 2:30PM
August 11, 2022 Mungindi, NSW   8:45AM – 2:30PM
August 12, 2022 Boomi, NSW   8:45AM – 2:30PM
August 23, 2022 Cecil Plains, QLD   8:45AM – 2:30PM
August 24, 2022 Brookstead, QLD   8:45AM – 2:30PM
August 25, 2022 Dalby, QLD   8:45AM – 2:30PM
August 26, 2022 Mungindi, NSW   8:45AM – 2:30PM
August 29, 2022 Gunnedah, NSW   8:45AM – 2:30PM
August 30, 2022 Quirindi, NSW   8:45AM – 2:30PM
October 4, 2022 Katherine, NT Knotts Crossing Resort 8:00AM – 1:00PM
October 5, 2022 Kununnura, WA Kimberley Grande Resort 8:00AM – 1:00PM
October 7 2022 Mareeba, QLD Mareeba Leagues Club 8:00AM – 1:00PM
Video Thumbnail Video Thumbnail

Off target movement of pesticide

Craig Day (Spray Safe and Save) and Matt Hayes (Bayer) talk about: different types of off target movement, surface temperature inversions and sensitivity of different crops to 2,4-D and dicamba. 
Craig Day (Spray Safe and Save) talks about: the importance of a clean sprayer, how to decontaminate your spray rig and the correct mixing order for herbicides.
Craig Day (Spray Safe and Save) and Donny Benn (Bayer) talk about: specific application requirements (e.g. wind speed), Delta T, surface temperature inversions and the XtendFlex cotton Spray App.
Craig Day (Spray Safe and Save) talks about: different nozzles types and how to select the correct nozzle.
Craig Day (Spray Safe and Save) talks about how a spray plan allows for the development of a management strategy for the safe and responsible application of herbicides.
Craig Day (Spray Safe and Save) talks about: the importance of water quality and its impact on the efficacy of herbicides.

Ask us a question

If you are a farmer, agronomist or distributor in Australia with a specific product query you can contact our technical helpline. Call 1800 804 479 and speak with our technical enquiries team, or ask us a question below.
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