Yarrow oil

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Yarrow (Achillea millefolium) essential oil in a colorless glass vial

Yarrow essential oil is a volatile oil including the chemical proazulene. The dark blue essential oil is extracted by steam distillation of the flowers of yarrow (Achillea millefolium).

It kills the larvae of the mosquito Aedes albopictus.[1]


  1. ^ Conti B., Canale A., Bertoli A., Gozzini F., Pistelli L. (2010). "Essential oil composition and larvicidal activity of six Mediterranean aromatic plants against the mosquito Aedes albopictus (Diptera: Culicidae)". Parasitology Research. 107 (6): 1455–1461. doi:10.1007/s00436-010-2018-4.