QioSI Fungicides
Introduction and General Information
QioSI fungicides control oomycete plant pathogens by inhibiting both ubiquinone binding sites at complex III (Zhu et al. 2015, Fehr et al. 2016).
| Code | Target site and code | Group name | Chemical group | Common name(s) | Comments |
| 45 | C8 complex III: cytochrome bc1 (ubiq. reductase) at Qi and Qo site (stigmatellin binding mode) |
QioSI fungicide (Quinone inside and outside inhibitor, stigmatellin binding mode) | Triazolo-pyrimidylamine | ametoctradin | Medium to high risk See FRAC QioS Guidelines for resistance management. |
Monitoring Results and Recommendations
At the annual meeting, the working group reviews the current year's monitoring results and decides whether they require changes be made to the next year's use recommendations. The minutes of those meetings are below.