Agrochemicals

Compiled by Sally-Jean Bell and Marcel Essling
Last updated 6 August 2008
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Frequently asked questions | Important points | Recommendations | Disclaimer and Copyright

Frequently asked questions

Why does The Australian Wine Research Institute recommend that the application of some products - for example Scala - be restricted to before 80% capfall?

The recommendations in the tables have been developed to satisfy the lowest maximum residue limit (MRL) for any of Australia's major wine markets after considering available data on the persistence of the agrochemical, both on grapes and through winemaking. In the case of Scala (pyrimethanil), it is known that if it is sprayed onto grapes after 80% capfall, residues may be detectable in the resultant wine. Some of the markets to which Australia exports wine have a very low MRL for pyrimethanil, or alternatively, have not announced their position on the course of action they would take if pyrimethanil was detected in wine. To ensure that Australian wine meets MRLs set by all of these markets, the 80% capfall restriction is suggested. For more information on Scala, click here. 

Are there exceptions to these restrictions?

Yes. Products may be used closer to harvest than the suggested restriction period in consultation with the winery/grape purchaser. 

A winery may choose to ignore the restriction if the wine made from the grapes will only be sold in Australia, or to an export market that has an MRL greater than the expected residue or if the market otherwise permits residues of the agrochemical. In this case, the label withholding period is the minimum delay that should be observed between spraying the grapes and harvest. 

Can I use a product that is not listed?

Yes. Provided that it is in consultation with your winery and used according to the label specifications. 

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