APVMA Releases Changes to 2,4-D Chemical Use
The APVMA is implementing new instructions to mitigate the risk of spray drift, which restrict the application of 2,4-D herbicides. In order for these new instructions to be in place, all current 2,4-D labels will be cancelled and the use of 2,4-D will be through a permit. The permit will stay in place until the conclusion of the current 2,4-D review.
What you need to know
- The full instructions can be found here https://apvma.gov.au/node/32941
- Do not spray when a surface temperature inversion is present
- Applicators must now use at least a Very Coarse (VC) spray quality
- When using a boom sprayer, boom heights must be 0.5m or lower above the target canopy
- Downwind buffers now apply (typically less than 50m, subject to rate and product being applied) between application sites, downwind sensitive crops and environmentally sensitive aquatic areas
- Additional record keeping is required. Operators need to update spray records, with greater detail, within 24 hours of application and keep these records for a minimum of two years.
Spray application - 2,4D label and permit changes
The webinar covers
The webinar will include a presentation by APVMA about the changes and feature a panel of experts to provide practical advice and personal experience to answer your questions.
- APVMA explanation of changes to the ‘directions for use’ for 2,4-D.
- Changes to application techniques.
- Spray quality.
- The observance of mandatory no-spray buffer zones.
- Increased requirements for detailed record keeping.
- Interactive Q&A session with an expert panel.
- New 2,4-D label instructions to reduce spray drift incidents 4 October 2018
- APVMA, Special gazette, 4 October 2018 Suspension of Approval of the Label for Containers for 2,4-D Products Notice Under s. 45A(1)(b) of the Code - page 4
Mitigating Spray Drift Risk
Weather and Drift Reduction
The resources below will help you quickly identify information that is relevant to you for mitigating the risk of spray drift
- Surface temperature inversions - Succinct explanation of surface temperature inversion and how it could affect spray application
- Surface temperature inversions and spraying - The influence of surface temperature inversions on spray operations
- Weather essentials for pesticide application - How to identify if an surface temperature inversion is likely to occur
- Weather monitoring for spraying operations - See GrowNotes Spray Application, Module 10: How to assess if conditions and equipment are suitable for spray operations
- Weather monitoring equipment for spray operations - Important legal, data collection and weather monitoring equipment tips for spray operations
- Nozzle selection guide
- Pulse width modulation - nozzle selection guide
- YouTube video: nozzle selection for larger droplets
Application and Equipment
- Managing variation in spraying speed
- Weed control in wheel tracks
- Spray height control
- Practical tips for spraying
- Spray water quality
- In-Crop herbicide use
- Pre-season sprayer checks
- Foliar applications of spray
- Maintaining efficacy with larger droplets - New 2,4-D application requirements
Tips and Tactics
Spray Application Manual for Grain Growers (released February 2017)
Bill Gordon was the editor but there are a number of other contributing authors and presenters (David Gooden, Andrew Storrie, Craig Day, Graeme Betts, Jorg Kittt, Tom Wolfe, Tim Neale)
- Consists of:
- 23 modules
- 77 “How to videos” which can be accessed from the Introduction/Contents module as well as from within the relevant Module section of the GrowNotes
- A Water flush for residuals Calculator (XLSX 14kb)
- Go to the Spray Application Manual for more modules and more information
State and Territory Specific Resources
- New South Wales - Refer to various documents on the EPA Pesticides web page and watch the safe use of pesticides video
- Northern Territory - Refer to various documents on the Chemical services web page
- Queensland - Guidelines for safe use of agricultural and veterinary chemicals web page
- South Australia - Biosecurity SA: rural chemicals web page
- Tasmania - Codes of practice, minimum standards, guidelines and information sheets for safe use, storage and disposal of chemicals
- Victoria - A guide to using agricultural chemicals in Victoria web page and watch the chemical use videos
- Western Australia - A guide to the use of pesticides in Western Australia
Reporting a Spray Drift Incident in your State or Territory
- New South Wales - Refer to the How to respond to pesticide misuse web page and call the environment line on 131 555, or email email@example.com
- Northern Territory - Refer to the NT WorkSafe Chemical Spray Drift bulletin or call the pollution response line on 1800 064 567
- Queensland - Refer to the Reporting chemical spray drift web page
- South Australia - Refer to the Chemical misuse (including spray drift) web page and call the biosecurity SA agricultural and veterinary chemicals hotline on 1300 799 684 or email PIRSA.RuralChemicals@sa.gov.au
- Tasmania - Refer to the Spray Information and Incidents web page and call the spray information and referral unit on 1800 005 244 or 03 6777 2184
- Victoria - Refer to the Reporting spray drift of agricultural chemicals web page
- Western Australia - Refer to various documents on the Guides on pesticide use for industry and local government
Australian Pesticides and Veterinary Medicines Authority
Phone: +61 2 6210 4701
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