Clayton Augusta™ – Effective Early Blight Control for Potatoes
Posted on 23 June 2025
As potato growers know, protecting yield potential starts with getting on top of disease pressure. Early Blight (Alternaria solani) remains a key threat to crop quality and productivity, especially in warm, wet conditions.
Disease control
Early blight (Alternaria solani) is a mainly soil-borne fungal pathogen that affects potato crops.
Warm and wet periods favour the disease, and if not controlled, it can cause dramatic leaf loss, leading to yield reductions of up to 30%. The disease is distinct from late blight (Phytophthora infestans).
Avoiding crop stress also reduces disease impact, so good crop management, appropriate fertiliser applications and irrigation best practice all help
Quick Guide Product Profile – Clayton Augusta™
Flexible, systemic and protectant strobilurin fungicide for potato in-furrow treatment and foliar spray. Ideal choice for Early Blight control.
SC formulation containing 250 g/L azoxystrobin
Use rate and timing:
(In-furrow application at planting) – apply at 3.0 L/ha for a maximum of 1 treatment per crop at planting.
(Foliar spray) – apply at 0.5 L/ha for a maximum of 3 treatments per crop at minimum 7-day spray intervals, up to latest application 7 days before harvest. Target use between GS51-85.
Target diseases:
Stem canker and Black scurf (Rhizoctonia solani), Black dot (Colletotrichum coccodes) – Reduction (in-furrow use only).
Early blight (Alternaria solani) – Moderate control (foliar use only).
Clayton offers a wide choice of leading products for potato crops this season.
- Achieving optimal crop growth to maximise yields relies on effective, early control of damaging disease.
- Careful planning and product choice will help growers achieve the best results for potato crops this season.
- Reliable, high-performance fungicides targeting cost-effective disease control to keep input spend down and profitability up.
- Protection against Early Blight (Alternaria solani) can help to reduce damage to both yield and quality in your crops.
See Clayton Augusta product label for full details on application, rates and timings.