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Hoary Cress (Lepidium draba)


Weed photo of: Lepidium draba
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Keys to ID:


Identification:


Control:

Mech: Because of the extensive root system, removing new shoots is extremely important. Where physical conditions permit, hoeing or tilling at intervals of 3 to 4 weeks may be effective. Soils must remain moist between hoeing so that plants can regenerate and deplete their root reserves. Plants must be completely removed within 10 days after emergence throughout the growing season for 2 to 4 years (USFS 2006). Mowing several times before the plants bolt stresses it and allows for better chemical efficacy.


Cautions:

Some people are allergic to hoary cress and have respiratory symptoms when exposed to flowering plants.


Synonyms:

Whitetop