Skip Navigation
The Future of Agriculture / Tools and Advice / Stewardship / Zorvec™ active application advice

Zorvec™ active application advice for 2024

Potatoes

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. 

Mancozeb remains registered in the UK and is a useful anti-resistance tank-mix partner.​

Corteva strongly advise following the 2024 application advice when recommending and applying Zorvec products.​

Corteva potato fungicides containing Zorvec™ active registered for use in the UK: Zorvec Endavia, Zorvec Entecta

View a printable A4 version of Corteva's Zorvec active application advice here.

Best practice application advice for 2024

· Apply Zorvec products in strict alternation with effective chemistry of a different mode of action, other than CAA (benthiavalicarb, mandipropamid, dimethomorph)​

· 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 or propamocarb.​

· Sprays containing Zorvec should not exceed 20% of the total number of sprays applied to a crop.​

· 2 sprays per crop if the expected programme is less than 15 sprays.​

· A single crop should not receive more than 3 spays containing Zorvec products.​

· Whilst still available, tank-mixing Zorvec products with mancozeb is recommended.​

Additional for seed crops & home saved seed​

· Zorvec applications must always be applied with a full rate of a curative fungicide e.g. cymoxanil.​

· A single crop should not receive more than 2 sprays containing Zorvec products and these 2 sprays should not exceed 20% of the total 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.

© 2024 Corteva.