Biennial & Perennial Weeds
THREADLEAF GROUNDSEL Senecio douglasii Life Cycle: Perennial Plant Description:
A many-stemmed evergreen composite in the Sunflower family. The stems are herbaceous, although somewhat woody at the base, and may have variable hairiness. The stems and leaves are gray- green. The leaves are long, threadlike and divided into three to seven segments. They may be hairy or nearly smooth. Showy yellow flowers emerge from March through November.
Treatment: Apply 3 pints of GrazonPD3 ™ herbicide per acre. Spray during and after full bloom in the fall with good moisture.
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