Bollgard 3
Bollgard 3

Bollgard® 3 with Roundup Ready Flex® cotton

Bollgard® 3 stacked with Roundup Ready Flex® provides cotton growers with insect control and and weed control options to enable superior yields, through the use of biotechnology. 

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Product Type
Biotechnology Traits

What is Bollgard 3

Bollgard 3 is a biotechnology trait that reduces the need to spray for Helicoverpa spp. the main cotton pest for Australian growers.

Bollgard 3 contains three proteins, Cry1Ac, Cry2AB and Vip3A, each 'killing' larvae in a different way.

Having three different active proteins increases the sustainability of the technology as it is difficult for helicoverpa to develop resistance to more than one of the Bt Proteins.

Bollgard 3 plays a critical role in protecting the technology, ensuring that it will continue to perform the way that growers need and expect for many years to come

Bollgard timeline

The addition of a third protein, Vip3A, reinforces the Bt proteins found in Bollgard II® – Cry1Ac and Cry2Ab. Three proteins will increase the longevity of the technology as each provides a different mode of action or ‘kill’ Helicoverpa spp. larvae in a different way.

Application Notes
Cotton Approved under DIR066 and DIR124 for use in Australia



Refuge crop Unsprayed conventional cotton Pigeon pea Sprayed conventional cotton
Minimum refuge required (%) 5.0 2.5 100.0
Maximum Bollgard 3 area available for planting (ha) {{ B8 = area*0.95 | number: 1 }} {{ C8 = area*0.975 | number: 1 }} {{ D8 = area*0.50 | number: 1 }}
Seed quantity of Bollgard 3 required (kg) {{ (seedingRate*B8)*plantingConfig/100 | number: 1 }} N/A {{ (D8*seedingRate)*plantingConfig/100 | number: 1 }}
Refuge area required (ha) {{ B13 = area-B8 | number: 1 }} {{ C13 = area-C8 | number: 1 }} {{ D13 = D8 | number: 1 }}

Bayer Cotton Product Guide

Bollgard 3 Resistance Management plan (RMP)

Bollgard 3 Resistance management of volunteer ratoon cotton

Bollgard 3 Resistance Management Plan (RMP) for Northern Australia

Roundup Ready Flex Cotton Weed Resistance Management Plan

Cotton planting windows & key RMP timings for Northern Australia

Fall armyworm and Bollgard 3 technology

Alternative Pupae Destruction Management

Featured video

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Video Thumbnail

Controlling volunteer and ratoon cotton

Control of volunteer and ratoon cotton is a key part of the Bollgard 3 Resistance Management Plan (RMP) and is also important for disease prevention. Sharna Holman, of the CottonInfo team and Queensland Department of Agriculture and Fisheries, explains.

You may also be interested in

Cotton Choices gives Bollgard® 3 and Roundup Ready Flex® growers flexibility to choose the best payment option for their technology fees, to suit the financial and production risks of their farm
Roundup Ready Flex cotton varieties enable growers to use registered glyphosate herbicides over-the-top of the crop, promoting superior yield potential through unmatched in-crop weed control.

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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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