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Fenhexamid

Type: Fungicide

Mode of Action: Inhibiting a crucial enzyme in the sterol biosynthesis pathway of fungi, known as 3-keto reductase

Common Product Names: Elevate

What is it?

Fenhexamid is a highly effective, locally systemic fungicide that is particularly noted for its efficacy against Botrytis cinerea, a fungus responsible for gray mold in various crops. It belongs to the hydroxyanilide class of fungicides and is characterized by its selective action, primarily targeting fungi in the Deuteromycetes class. Its systemic action allows it to be absorbed into the plant tissue, providing protection from within and ensuring long-lasting efficacy.

Fenhexamid is typically applied as a foliar spray and is known for its ability to provide both preventative and curative effects, making it versatile in managing fungal infections. It is usually applied as a post-emergent treatment, targeting fungi after they have appeared on the crop. The effects of Fenhexamid can be observed within days after application, as the targeted fungi begin to die off, preventing the spread of infection.

How does it work?

Fenhexamid works by inhibiting the biosynthesis of ergosterol, a key component of fungal cell membranes. Without ergosterol, fungal cells are unable to maintain their structural integrity, leading to impaired growth and eventual death of the fungus. This mode of action is highly effective against a broad spectrum of fungal pathogens, particularly those responsible for gray mold in fruit crops.

Benefits

  • Highly effective against Botrytis cinerea (gray mold), a common and destructive fungal pathogen.
  • Dual action: Offers both preventative and curative effects, providing flexibility in fungal management.
  • Locally systemic: Absorbed by plant tissue, ensuring long-lasting protection from within the plant.
  • Previous article Spiromesifen

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