Biennial & Perennial Weeds
Photo courtesy of Joseph M. DiTomaso, Univ. CA — Davis
PARSNIP, WILD *T* Pastinaca sativa Life Cycle: Biennial Plant Description:
A biennial that forms a rosette of basal leaves in the first year that resemble celery. In the second year a hairy and grooved stem elongates with alternate leaves that are compound with course saw-tooth edges. Small yellow or white flowers form in an umbrella shape. The leaves can cause a painful rash. Skin sensitivity is greatest at flowering time.
Treatment: Apply 12 to16 fluid ounces of DuraCor ® herbicide per acre. Apply to vegetative stage prior to bloom. Use higher rate when weeds are larger.
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