Zorvec™ active application advice

Zorvec™ active application advice for 2026

Products containing Zorvec™ active deliver highly effective disease control against potato Late Blight.

Zorvec remains a highly effective product for the control of Late Blight.

Corteva have a robust monitoring programme in place for the UK & Ireland, but no breakdown of efficacy to Zorvec in the field has been found.

Corteva strongly advise following the 2026 application advice when recommending and applying Zorvec products.

Corteva potato fungicides containing Zorvec™ active registered for use in the Ireland: Zorvec Entecta

For a printable A4 copy of the best practice advice, click here.

Best practice application advice for 2026

Apply Zorvec products in strict alternation with effective chemistry of a different mode of action, other than a CAA (benthiavalcarb, mandipropamid, dimetamorph).
The post-Zorvec application interval to the following non-Zorvec containing spray should not exceed 7 days.
In curative situations (disease evident or confirmed in local area) Zorvec co-formulations should be applied in tank-mix with a partner fungicide containing a curative active ingredient e.g. cymoxanil (Option®) or propamocarb.
Sprays containing Zorvec should not exceed 20% of the total number of sprays applied to a crop.
- I.e. a single crop would not receive more than 2 sprays containing Zorvec products.
- Only 1 application would be applied to seed crops as part of the late blight programme.

USE PLANT PROTECTION PRODUCTS SAFELY. Always read the label and product information before use. For further information including warning phrases and symbols refer to label.