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Weed Control

Oxeye Daisy

Oxeye Daisy

Leucanthemum vulgare
Perennial

picture of oxeye daisy flower picture of oxeye daisy rosette picture of oxeye daisy infestation
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Identification and management tips

  • Oxeye daisy resembles a typical daisy. The 1 1/2 to 2 inch flower heads are borne individually on slender stems from June through August.
  • Oxeye daisy is a prolific seed producer, usually shedding 2,000 to 4,000 seeds per plant with a high of 26,000 seeds on one plant.
  • Oxeye daisy forms dense stands decreasing plant diversity and limiting grazing options as palatable forage species are crowded out.
  • Prevention is key in controlling the impacts of oxeye daisy on our wildlands. Do not sow wildflower seed mixes containing oxeye daisy.
  • For small infestations hoe or hand-pull seedlings and young plants. This is most effective when done before oxeye daisy flowers and seed is dispersed.
  • For large infestations repeated mowing throughout the growing season combined with herbicides can be an effective form of control, as it produces a more uniform plant with greater leaf area to better absorb herbicides.
  • Mowing oxeye daisy will not eradicate the weed, but it limits the spread of seed, when timed properly.
  • Mow once after the plants produce a flower stalk (bolt), but before they flower. It is important to mow again a month later to prevent flowering later in the season.
  • Montana researchers have shown that oxeye daisy is tolerant to 2,4-D at the legal rate of 2 lbs/acre/year. Therefore, 2,4-D may not be the most effective option.
  • In southwestern Montana, 1.5 pints/acre picloram plus 1 quart/acre 2,4-D gave 100 percent control for two years on one site. However, researchers do not recommend this treatment for long-term control. Transline® is also labeled for use on oxeye daisy. Transline should be applied at one third to one pint/acre when plants are young and actively growing.
  • Re-establishment of desirable vegetation is needed in order to successfully manage oxeye daisy. Perennial grasses are effective competitors, particularly tall species that shade oxeye daisy, making it a weaker plant.
  • Because oxeye daisy is not a superior competitor for nutrients, some researchers believe fertilizer applied in combination with herbicides will enhance the growth of grasses and hinder oxeye daisy performance.

Most effective control methods and timing

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Prevention (Prev)
Monitor and destroy new plants before seed production.

Mechanical (Mech)
Hand pulling, digging, cutting, mowing and tilling.

Cultural (Cult)
Biological control agents, livestock grazing, and revegetation practices.

Chemical (Chem)
Selective herbicides based on the plant and the specific location. Check our weed fact sheets for specific control information.

 

Oxeye_daisy_thumb

SLCo Oxeye daisy fact sheet

Links

Photo credits

Left to right:

  • Mary Ellen (Mel) Harte, Bugwood.org
  • Montana Statewide Noxious Weed Awareness and Education Program Archive
  • Montana State University, Bugwood.org
  • Steve Dewey, Utah State University, Bugwood.org