Mode of Action
Pyraclostrobin, a strobilurin-class fungicide, exhibits contact and translaminar activity with protective, curative, and eradicant effects against a wide range of pathogens, including oomycete fungi. The active ingredient is rapidly absorbed by the plant and primarily retained in the leaf cuticular wax layer. As a result, a reservoir of active substance is formed on the leaf surface, which is not washed off by precipitation and provides long-lasting protection against fungal infections. Good translaminar movement through the leaf allows the product to control pathogens on both sides of the leaf. The component is most active in preventive treatments.
The mode of action of strobilurin is to inhibit mitochondrial respiration of pathogenic fungi; the germination of fungal spores into plant tissue is inhibited, and mycelial growth is blocked. It is a strong antisporulant.
It actively influences the biological and physiological reactions of plants, resulting in the green leaf effect, effective preservation of green matter and nutrient supply for a high-quality crop.
Difenoconazole and tebuconazole are triazole-class active ingredients with strong systemic properties but differing mobility within the plant. The mode of action is to inhibit sterol biosynthesis in fungal cells, thereby suppressing the growth of vegetative structures. Their systemic activity ensures distribution throughout the plant, reaching all sites of infection.
The pronounced synergism and complementary action of the three active ingredients – strobilurin and two triazoles – deliver prolonged protective activity, rapid and strong curative effects, and strong antisporulant action against a wide range of pathogens at all stages of infection (immediate arrest of disease development followed by eradicating effect and a durable preventive barrier).
