Spray Drift Webinar
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.
Spray application - 2,4D label and permit changes
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.
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
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