For blood stanch, only one mode of action has resulted in cases of resistance.
Several cases of glyphosate resistance (HRAC 9) have been confirmed in Valais since 2020.
Resistance status in Switzerland
Plant characteristics
Blood Stanch (Conyza Canadensis)
Biennial autumn dicot of the Asteraceae family
Colonised crops |
All types of crops, but mainly perennial crops, wasteland, field margins and roadsides |
Favourable conditions |
Low-diversity rotations, infrequent ploughing |
Preferred soils |
Light, slightly saline, basic-pH, calcareous soils. Sunny locations. An indicator plant for degraded and leached mineral soils. Soils asphyxiated by compacting or pounding |
Germination window |
Year-round |
Pollination |
Mainly by self-pollination but also by wind cross-pollination |
EPPO code |
ERICA |
Contact
Resistance Map
