Flashone fungicide is a combination of two powerful active ingredients
Chlorothalonil and cymoxanil are fungicides that protect plants from fungal infections through different mechanisms.
Chlorothalonil
Chlorothalonil is a broad-spectrum, contact fungicide. Its mode of action in plants
By combining chlorothalonil's protective barrier on the plant surface with cymoxanil's internal protection and curative properties, these fungicides provide comprehensi
Chlorothalonil is a broad-spectrum, contact fungicide. Its mode of action includes:
1.Multi-Site Activity: Chlorothalonil works by inhibiting various enzymatic processes within fungal cells. It interferes with thiol groups (sulfur-containing compounds) in fungal proteins, disrupting their function and leading to the death of the fungus.
2. Preventative Action: As a contact fungicide, chlorothalonil forms a protective barrier on the surface of plant tissues, preventing fungal spores from germinating and infecting the plant. It needs to be applied before the infection occurs or at the very early stages of disease development.
Cymoxanil
Cymoxanil is a systemic fungicide with curative and protective properties. Its mode of action includes:
1. Systemic Activity: Cymoxanil is absorbed by the plant and moves through the plant tissues, providing protection from the inside out. This systemic action helps protect new growth that emerges after application.
2. Curative Action: Cymoxanil can stop the development of the fungus even after infection has started. It inhibits RNA polymerase, an enzyme crucial for protein synthesis in fungi, thereby stopping fungal growth and development.
3. Translaminar Movement: Cymoxanil penetrates the leaf surface and moves translaminarly (from one side of the leaf to the other), which helps protect both sides of the leaf.
Combined Use
Chlorothalonil and cymoxanil are often used together in fungicidal formulations to provide both contact and systemic protection. This combination ensures
1. Broad-Spectrum Protection: The multi-site activity of chlorothalonil complements the systemic and curative actions of cymoxanil, providing broad-spectrum control of various fungal pathogens.
2. Resistance Management: Using multiple modes of action helps manage the development of resistance in fungal populations.
By combining chlorothalonil's protective barrier on the plant surface with cymoxanil's internal protection and curative properties, these fungicides provide comprehensive protection against fungal infections in crops.