Introducing a new benchmark for disease control in grapes
Grapes

MIRAVIS® Prime fungicide

Following 8 seasons of product development in New Zealand and over 20 fully replicated trials, MIRAVIS® Prime fungicide is now approved for use on winegrapes in New Zealand.

MIRAVIS® Prime is an exciting new fungicide combining ADEPIDYN® technology with the proven performance of fludioxonil.

ADEPIDYN® is the Syngenta trademark for the active ingredient pydiflumetofen, a new SDHI fungicide developed by Syngenta with unique fungicidal properties.

MIRAVIS® Prime delivers best-in-class control of botrytis and powdery mildew in grapes, with nil residues in wine when used as directed over flowering up to 80% capfall.

Product highlights

  • The strength of two actives for powerful and long-lasting disease control.
  • Controls botrytis and powdery mildew in grapes at a critical growth stage for both diseases at flowering.
  • Nil detectible residues in wine when used once in a season up to 80% capfall.
  • Attacks fungi at multiple sites with contact, translaminar, and local systemic activity.
  • Combines two modes of action for botrytis resistance management.
  • Rapidly binds into the leaf wax for durable rainfastness.

Nil residues in wine

Multiple residue studies in New Zealand conducted over three seasons on red and white varieties, have shown nil detectible residues in wine (below 0.01 mg/kg) when MIRAVIS® Prime fungicide is applied to grapes once at 80% capfall (EL-25).

Withholding period and pre-harvest interval

To achieve nil residue (<0.01mg/kg) in wine or exporting to the European Union, Great Britain, Hong Kong and Switzerland, the PHI is 80% capfall but not less than 98 days before harvest. For all other markets including New Zealand, the WHP/PHI is 80% capfall, without the minimum 98 days restriction.

Where export requirements are for residues less than the limit of detection (<0.001mg/kg), a PHI of pre-capfall is recommended.

Behaviour of ADEPIDYN® in grapes

ADEPIDYN® rapidly diffuses into the waxy layer of the plant, forming a long-lasting reservoir of the active, protected from wash-off by rainfall.

From this reservoir, a portion of ADEPIDYN® moves into the leaf tissue via translaminar movement (moving from one side of the leaf to the other) with slow xylem systemic redistribution (locally systemic).

ADEPIDYN® can deliver disease control away from the point of application to help protect new growth, which is particularly important for powdery mildew control on new and expanding leaves and shoots.

Rate and number of applications

Apply 100 mL/100 L of MIRAVIS® Prime to grapes at flowering up to 80% capfall (EL-25). The volume of water required will depend on the stage of vine growth, vigour, and row spacing.

Use the industry accepted rate calculator to determine the hectare dose. DO NOT apply more than 1.3 L/ha of MIRAVIS® Prime fungicide, with a maximum of one application per season.

Leaf plucking in vineyards

Sheep must NOT be sent for slaughter or milked for two months after being removed from the vineyard (and placed on clean feed).

Winemaking and sensory evaluation

MIRAVIS® Prime fungicide has been tested on several white and red grape varieties in New Zealand (and overseas) with no adverse effects detected on grapes, fermentation, or sensory attributes.

Trial results

Replicated trials conducted in New Zealand over eight seasons, have demonstrated that MIRAVIS® Prime fungicide consistently outperforms current market standards, including SWITCH® fungicide which has been the benchmark for botrytis control in grapes for many years.

Pack size and availability

MIRAVIS® Prime will be available this season in 5 litre plastic containers which can be recycled through Agrecovery.

For more information on the use of MIRAVIS® Prime fungicide in grapes click here.