Pest Profile: Stork’s Bill
- Winter Annual
Stork’s bill stalks are erect and grow to about 40 cm (16 in.) tall. The leaves resemble carrot leaves, and the pink or purplish flowers are about 1 cm (1/2 in.) in size and grow in clusters of 2-12 flowers on long flower stalks. At the maturity stage, the seed splits into five segments, each with a spiraled tail.
- Scout fields early, as stork’s bill can grow past the recommended herbicide application stages.
- Check low spots for patches, and take at least 20 weed counts across the field.
- Control by tilling the previous fall and then treat with an herbicide as early in the season as possible.
- Clean all equipment thoroughly to avoid unintentionally spreading seed.
Please read each label to determine which herbicide is appropriate for the crop affected.
REFERENCES AND ADDITIONAL READING
“Stork’s Bill (Erodium cicutarium).” Alberta Invasive Plants Council. https://bit.ly/2qxANAT
“Stork’s Bill.” Province of Manitoba. https://bit.ly/2OsX643