Agrochemical Updates, eBulletin


AWRI Agrochemical update Downy Mildew Permits 8 December 2010

The APVMA has issued an off-label permit enabling the use of a metalaxyl and mancozeb formulation on grapevines. It is essential that you read the conditions attached to the permit prior to use (View the full PDF).

NOTE: Chemical products applied to control Downy Mildew in viticulture must be registered by the APVMA and users must follow all label directions, unless a current off-label permit has been issued. Off-label use or the use of unregistered products have not undergone the relevant risk assessments and should not be used. Their use may be illegal, pose the risk of chemical residues in grapes, wine or have negative winemaking implications.

PERMIT TO ALLOW EMERGENCY USE OF A REGISTERED AGVET CHEMICAL PRODUCT

FOR THE CONTROL OF DOWNY MILDEW IN GRAPEVINES

PERMIT NUMBER -PER12650

CONDITIONS OF USE

Product to be used:
MAX MZ FUNGICIDE
Containing: 40 g/L METALAXYL, 320 g/L MANCOZEB as the only active constituents.

Directions for Use:

Crop Disease Rate
Grapevines Downy mildew
(Plasmopara viticola)

500mL/100L

Critical Use Comments:

  • Make first application when conditions favour disease development and before infection has occurred – before any ‘oil spot’ are visible.
  • Ensure thorough coverage of all plant surfaces.
  • Repeat application 7-10 days later. Use the shorter interval when disease infection is severe.
  • Addition of a non ionic surfactant is recommended.
  • DO NOT apply more than two consecutive applications of Max MZ.
  • Apply a maximum of four applications of Max MZ per season.
  • This use is subject to a CropLife anti-resistance strategy. DO NOT apply more than 2 consecutive sprays of a Group D product. Apply a maximum of 4 Metalaxyl sprays per season.

Withholding Period:

Harvest: DO NOT harvest for 14 days after last application

Note: For grapes destined for export wine users should refer to recommendations as included in the AWRI publication Agrochemicals registered for use in Australian viticulture 2010/2011. For products containing metalaxyl and metalaxyl-M the publication recommends to Use no later than 30 days before harvest.

Jurisdiction:

ALL States except Vic
(Note: Victoria is not included in this permit because their ‘control-of-use’ legislation means that a permit is not required to legalise this off-label use in Vic).