Weeds - Knowledgebase Question

JESUP, Ge
Question by clyattd
August 20, 2009
We have an abundance of weeds that sought of resemble a mimosa, they have round spots on back of the leavs, that look like seeds. How can we get rid of them, they seem to spread rapidly. I have sprayed weed killer, but they seem to thrive on it


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Answer from NGA
August 20, 2009

0

Your description of the weed makes me think it is Chamberbitter (Phyllanthus urinaria), which is a tropical weed that has become a major pest of lawns, landscapes and plant nurseries. Glyphosate (Roundup) will kill it but you have to be careful to keep the chemical off nearby foliage. In a lawn, broadleaf weedkiller (Weed-B-Gon, Weed Stop, etc.) applied twice, seven days apart, is also effective.

The best way to control the weed is to prevent it. Apply isoxaben (Green Light Portrait) pre-emergent herbicide in late April and again in mid-June to areas where you will not be planting seeds for anything else. As with every herbicide, read the label and follow it exactly.

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