Strobilurins (QoI Fungicides): Uses, Chemical & Trade Names, Mode of Action, and Target Diseases

08 February 2025, New Delhi: Strobilurins, also called QoI fungicides, are systemic and translaminar fungicides. They inhibit mitochondrial electron transport, specifically at cytochrome bc1, disrupting energy production in fungi.

Chemical Names and Trade Names

1. Azoxystrobin – Amistar
2. Trifloxystrobin – Flint
3. Kresoxim-methyl – Ergon

Mode of Action

Strobilurins function by inhibiting mitochondrial respiration, effectively halting fungal growth.

Target Diseases

• Blast
• Downy Mildew
• Rusts
• Powdery Mildew

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