BOLLGARD® 3 RESISTANCE MANAGEMENT PLAN
A Bollgard 3 RMP was developed by Monsanto and endorsed by the cotton industry’s Transgenic and Insect Management Strategies (TIMS) Committee.
A submission has been made to the Australian Pesticides and Veterinary Medicines Authority (APVMA) to approve the Bollgard 3 product and also the proposed Resistance Management Plan. Monsanto anticipate receiving this approval in early 2016.
The Bollgard 3 RMP is based on three basic resistance management principles that currently form the backbone of the Bollgard II® RMP:
- Providing a population of susceptible individuals that can mate with any resistant individuals, hence diluting any potential resistance;
- Minimising the exposure of Helicoverpa spp. to the Bt proteins Cry1Ac, Cry2Ab and Vip3A; and
- Removing resistant individuals at the end of the cotton season the principle of providing a population of susceptible individuals that can mate with any resistant individuals.
The Bollgard 3 RMP includes three key changes:
Greater planting opportunity
Less restrictive planting windows offer greater opportunity to take advantage of rainfall.
SOUTHERN QUEENSLAND AND NEW SOUTH WALES
All Bollgard 3 crops and refuges must be planted into moisture and or watered up between August 1 and December 31.
All Bollgard 3 crops and refuges must be planted into moisture or watered up between August 1 and October 31.
Planting after October 31, through until December 31, is possible with the requirement of 10% unsprayed cotton or 5% Pigeon Pea refuge.
Reduced refuge requirements
Decreased refuge area requirements meaning area and resources can potentially be dedicated to profitable crops.
Unsprayed cotton refuge requirement has been reduced to 5% of the area of Bollgard 3 cotton.
Unsprayed Pigeon Pea refuge requirement has been reduced to 2.5% of the area of Bollgard 3 cotton.
Sprayed cotton refuge size to remain at 100% of the area of Bollgard 3 cotton.
Addition of Pigeon Pea as a refuge option for dryland Bollgard 3 (subject to development of a management plan endorsed by the Regional Business Manager).
Minimum refuge size of 0.5 hectares where no sprayed cotton is planted on the same farm unit.
More flexible pupae busting requirements
Growers have greater opportunity to preserve soil moisture, for following crops, with reduced pupae busting requirements.
Pupae busting is only mandatory for fields where first defoliation occurs after March 31.
All Bollgard 3 fields must be slashed or mulched within 4 weeks of harvest
In select regions including Lachlan, Murrumbidgee, Menindee and Murray valleys pupae busting can occur up to August 31, while the requirement for all other valleys is July 31.
Ensure cultivation 30cm both sides of the plant line to a depth of 10cm.
Extensive scientific research has been undertaken over the past three years to develop an RMP that balances the need to protect the technology with the prospect of offering growers additional flexibility. A Bollgard 3 RMP was developed by Monsanto and endorsed by the cotton industry’s Transgenic and Insect Management Strategies (TIMS) Committee.
Monsanto has received all domestic approvals for Bollgard 3.
- Office of the Gene Technology Regulator (OGTR) approved Bollgard 3 for commercial release in 2014
- Food Standards Australia New Zealand (FSANZ) has approved Bollgard 3 for human consumption
- Australian Pesticides & Veterinary Medicines Authority (APVMA) has approved the Bollgard 3 product and proposed Resistance Management Plan.