Disease Focus- Late Blight - Potatoes - 2025

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Managing Potato Late Blight.

With Potato late blight disease pressure increasing due to current weather condfitions growers should remain vigilant for signs of the disease.

Cost-effective disease control in Potatoes.

Effective control of key potato diseases is essential at this time of year to support crop growth, protect yields, and maintain tuber quality.

Avoiding crop stress also reduces disease impact, so good crop management, appropriate fertiliser applications and irrigation best practice all help.

With late blight pressure increasing, growers should remain vigilant for symptoms of the disease.

Caused by the oomycete Phytophthora infestans, late blight remains the most serious disease threat to UK potato crops.

The disease can infect foliage, stems, and tubers, and spreads rapidly under mild, humid conditions. Visible leaf symptoms, typically irregular dark spots can develop within just a few days of infection.

Growers are advised to respond with robust blight control strategies and pay careful attention to protecting tubers from the high risk of infective blight spores.

Keeping up a strong programme with different actives to maintain blight-free foliage is now vital for protecting tubers and yields, especially in crops where planting was later this season, which may be more vulnerable in the coming weeks.

WDG formulation, 600 g/KG cymoxanil

CLAYTON LINAXO™
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PRODUCTS FOR LATE BLIGHT CONTROL IN POTATOES

Clayton Linaxo™ Fungicide

Clayton Linaxo ™

Performance fungicide targeting cost-effective blight control.

Potatoes

Active Ingredients: 600 g/KG cymoxanil

Use Rate: Potatoes: (Foliar spray) - apply at 0.15 KG/ha for a maximum of 8 treatments per crop at minimum 7-day spray intervals, up to latest application 1 day before harvest (BBCH 93).

Target Diseases: Potato Late blight (Phytophthora infestans) - control.

• Offering both preventative and curative control of potato late blight

• Cost-Effective, Flexible Tank-Mix Partner

• Season-long protection offering protection during high-risk tuber bulking periods

• Trusted Performance in UK Conditions

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