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.

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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.

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.

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. 

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.


Date Location Venue details TBC State
1-May-24 Cloncurry Gidgee Inn  QLD
16-May-24 Proserpine TBC QLD
17-Jun-24 Emerald Maraboon Tavern QLD
18-Jun-24 Moura TBC QLD
20-Jun-24 Dalby Dalby Country Club Hotel QLD
21-Jun-24 Pittsworth Pittsworth Motor Inn QLD
24-Jun-24 Texas TBC QLD
25-Jun-24 Moree Moree Services Club NSW
26-Jun-24 Narrabri / Wee Waa Locharba Research Centre NSW
9-Jul-24 Narromine Narromine United Services Memorial Club NSW
10-Jul-24 Warren Warren Services Club NSW
11-Jul-24 Spring Ridge/Mullaley Royal Hotel Spring Ridge NSW
12-Jul-24 Gunnedah Gunnedah Golf Club NSW
15-Jul-24 Bellata TBC NSW
16-Jul-24 Mungindi Two Mile Hotel Motel NSW
17-Jul-24 St George Culgoa Room at Balonne Shire Council QLD
18-Jul-24 North Star TBC NSW
23-Jul-24 Condobolin Condobolin RSL Club NSW
24-Jul-24 Griffith Griffith Leagues Club Southside NSW
25-Jul-24 Coleambally Colleambally Community Club NSW
27-Aug-24 Griffith Griffith Leagues Club Southside NSW
28-Aug-24 Coleambally Colleambally Community Club NSW
3-Sep-24 Walgett Walgett Sporto NSW
4-Sep-24 Burren Junction Burren Junction Hotel NSW
5-Sep-24 Moree Moree Services Club NSW
6-Sep-24 Goondiwindi O'Shea's Royal Hotel QLD

XtendFlex spray applicator training series 2024

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