Biennial & Perennial Weeds
SOWTHISTLE, PERENNIAL Sonchus arvensis Life Cycle: Perennial Plant Description:
Erect, stout, smooth stems that can reach 4 to 6 feet in height. Leaves are light green, ranging from 6 inches to 12 inches long with toothed edges. Yellow, dandelion-like flower heads can grow 2 inches in diameter.
Treatment: Apply 16 to 20 fluid ounces of
HighNoon ® herbicide per acre after complete plant emergence to the flower stage of growth.
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