invasive bishop's weed - Knowledgebase Question

Midlothian, IL (Zone 5A)
Avatar for gardengalpat
Question by gardengalpat
May 5, 2007
Help! I have bishop's weed in my flower beds and need to get rid off it. I have sat for hours digging it out then a rain comes and there it is again. It is the green and white one , please help me.

Answer from NGA
May 5, 2007
Bishop's weed or Bishop's Goutweed is extremely difficult to eradicate because just a small sliver of a root can grow into a new plant. I have had some success with herbicides containing glysophate (such as Round-Up). Thoroughly spraying each and every plant that sprouts, allowing it to die out completely, and then covering the area with a thick layer of mulch eventually gets rid of it. Be careful when using Round-Up - its a non-selective contact herbicide and will kill anything it touches.

Best wishes with your project!

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