Stark

Mechanism of Action and Technical Specifications

The fungicide "Stark" is built upon azoxystrobin, an active ingredient belonging to the strobilurin class. This product features a dual-action system: it provides both contact and systemic protection, which is essential for rapidly growing crops such as winter wheat, sunflowers, and tomatoes. Azoxystrobin functions by inhibiting the mitochondrial respiration of pathogens, blocking electron transport, and subsequently terminating fungal growth at early stages.

The Advantage of Hybrid Action

• Contact Shield: The contact properties create a protective barrier on the leaf surface, effectively preventing spore germination.
• Systemic Distribution: The systemic nature of the fungicide allows it to penetrate plant tissues, protecting new growth and areas not directly hit during application.
• Physiological Enhancement: Beyond disease control, it facilitates nitrogen metabolism and extends the photosynthesis process, leading to improved yield quality in wheat and better head development in sunflowers.

Field Application and Performance

Available as a suspension concentrate, "Stark" ensures consistent distribution of the active ingredient across the crop canopy. This formulation is highly effective against a broad spectrum of pathogens, including Alternaria, Peronospora, Septoria, Phomopsis, Phoma, powdery mildew, and late blight (Phytophthora).

The recommended application frequency is 2–3 times per season. With a 3rd-class hazard rating, it is suitable for intensive farming practices when standard safety measures are observed. For optimal results, application should be prophylactic or performed at the very first visual signs of infection to minimize economic damage and protect yield potential.