Biennial & Perennial Weeds
WHITETOP or HOARY CRESS Cardaria draba Life Cycle: Perennial Plant Description:
A creeping perennial mustard that reproduces by seed and creeping roots. Grows erect up to 2 to 3 feet tall. Somewhat flat-topped clusters of white flowers giving plant a white, flat-topped appearance. Lower leaves are blue- green and lance shaped, and upper leaves have two lobes clasping the stem. Plants die back to the roots in summer.
Treatment: Apply 3.3 ounces of Chaparral ™ herbicide per acre. Apply early in the spring to actively growing rosettes or to regrowth before the bud stage. Treatment after bloom is generally less effective. The addition of Freelexx ® herbicide at 2 pints per acre is recommended. Treatment can also be made to fall regrowth before the first killing frost.
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