Thursday, March 07, 2019

NEW - Requirements to Spray 2,4-D: Reduce the Risk of Damage.


Spray application and spray drift management is critical in using herbicide and pesticide products effectively and safely – for you as operator,  and both target areas being sprayed and non-target areas.   

As well, awareness of current or new label instructions for some products really mean users must up their performance to use best practice to reduce the risk of off-target spray drift and to incorporate the new label instructions for the use of 2,4-D.

The Australian Pesticides and Veterinary Medicines Authority (APVMA) suspended the labels of all products containing the active ingredient 2,4-D from October 4, 2018, replacing them with a permit.

Key changes for using 2,4-D under the permit include: applicators must now use at least a Very Coarse (VC) spray quality; when using a boom sprayer, boom heights must be 0.5 metres (or lower) above the target canopy; and downwind buffers now apply (typically less than 50 metres, subject to rate and product being applied) between application sites, and downwind of sensitive crops and environmentally sensitive aquatic areas.

While new procedures are focused on 2,4-D, common sense would indicate that related products also may need more appropriate care during spraying.   It might also lead to better overall outcomes and improved success for the target plants.

Six videos have been developed and are worth looking at to help users adapt to the changes.
Presented by respected spray consultant Bill Gordon, the new series of six videos cover the topics :
             2,4-D label changes
             A spray contractor’s experience
             Nozzle selection for larger droplets
             Weather conditions and the 2,4-D label
             Maximising spray coverage
             Maximising spray efficiency 

More information and links to the media are on a few web sites; this link should find the videos –

they are listed sequentially.

Useful for growers and spray users across many field crop species, horticulture, pastures and turf to help effective spraying and prevent problems – which could come back to hit you!

While specific to 2,4-D the principles really have wider ramifications and should improve overall herbicide spray operations.  Good sensible operational practice pays off with better outcomes.

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