Class B Noxious Weed
- This plant is also on the Washington State quarantine list. It is prohibited to transport, buy, sell, offer for sale, or distribute plants or plant parts of quarantined species into or within the state of Washington or to sell, offer for sale, or distribute seed packets of seed, flower seed blends, or wildflower mixes of quarantined species into or within the state of Washington.
- Wild chervil is highly adaptable and will grow in almost any type of soil.
- It has an aggressive growth habit which quickly creates monocultures.
- It poses a serious threat to native plants and agriculture.
- Wild chervil is an upright biennial or short lived perennial. It can reach a height of 1 to 3 feet.
- Flowers in umbels, up to 3.1 inches wide, flower stalks originating from one point.
- Flowers are small and white and bloom from April to May.
- Leaves are finely divided, fern like and slightly hairy.
- Plants have basal and stem leaves, stem leaves that reduce in size up the stem.
- Stems are hollow and ridged. They are hairy on the lower portion and smooth on the upper portions.
- Fruits are black, elongated oval shape and about 0.2 inches long.
- Found along roadsides, pastures, forest edges, and in waste areas.
Reproduction and Spread
- Reproduces by seed.
- The best way to control this weed is by applying effective, systemic herbicides. Most other methods of management do not give long-term control.
- Rate 2.25 lb ae/a
- Apply to actively growing plants from bud to early flower.
- Glyphosate is nonselective and will kill or injure vegetation that might compete with new chervil seedlings.
- imazapyr (Arsenal)
- Rate 0.75 lb ai/a
- Apply to actively growing plants from bud to early flower
- Add an appropriate surfactant
- Use on rangeland, pasture, and non-cropland only.