Lawn Weeds - Ask Extension
I don't know if this is the proper place to ask a question about lawn weeds but I request assistance in identifying a type of lawn weed that does not...
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Lawn Weeds #136004
Asked June 22, 2013, 8:41 AM EDT
I don't know if this is the proper place to ask a question about lawn weeds but I request assistance in identifying a type of lawn weed that does not seem to respond (or eliminate) to typical weed & feed products.
It slowly spreads out over the season in my lawn in different areas and seems to snuff out the grass around it. It grows more in a ground cover fashion vs. up.
It has started to come up again this year. Right now, there are small white star shaped flowers (in the shape of 4 prongs) on it. Here are some pictures of the leaves, the roots, and the seeds (from Sept of last year).
I would appreciate to know what this weed is and the best way to treat it to eliminate it.
I have no pets or children that use the lawn.
It has not taken over the lawn and seems to stay in the areas where it is. Shade or full sun do not appear to have an affect as it is in sunny areas and shady areas. I've had it for at last 5 years and my neighbors also have patches of it. None of us have been successful in eliminating this type of unwanted weed in our lawns.
Thank-you in advance for assistance.
It slowly spreads out over the season in my lawn in different areas and seems to snuff out the grass around it. It grows more in a ground cover fashion vs. up.
It has started to come up again this year. Right now, there are small white star shaped flowers (in the shape of 4 prongs) on it. Here are some pictures of the leaves, the roots, and the seeds (from Sept of last year).
I would appreciate to know what this weed is and the best way to treat it to eliminate it.
I have no pets or children that use the lawn.
It has not taken over the lawn and seems to stay in the areas where it is. Shade or full sun do not appear to have an affect as it is in sunny areas and shady areas. I've had it for at last 5 years and my neighbors also have patches of it. None of us have been successful in eliminating this type of unwanted weed in our lawns.
Thank-you in advance for assistance.
Chesapeake County Virginia
Expert Response
Feel free to bring in plant samples for Identification, pest or disease control too. Our office is at 310 Shea Drive (right next door to City Hall) in the Planetarium building.
the plant you have in the pictures is Virginia Buttonweed. Below is a link that will tell you more about it and some control recommendations too from NCSU
http://www.turffiles.ncsu.edu/Weeds/Buttonweed_Virginia.aspx
the plant you have in the pictures is Virginia Buttonweed. Below is a link that will tell you more about it and some control recommendations too from NCSU
http://www.turffiles.ncsu.edu/Weeds/Buttonweed_Virginia.aspx
Thank-you very much.
I'm looking for the types of control chemicals to use but they only appear to be available in very large quantities (ex. as a golf course would order).
I'll try some 2,4-D from Tractor Supply and let you know how it worked, unless you can suggest another product.
I'm looking for the types of control chemicals to use but they only appear to be available in very large quantities (ex. as a golf course would order).
I'll try some 2,4-D from Tractor Supply and let you know how it worked, unless you can suggest another product.
The 2,4-D + Dicamba + (Triclopyr or Penoxsulam) would work mostly in spring with sequential applications too
When it comes to selecting herbicides with 2,4-D + Dicamba + (Triclopyr or Penoxsulam), is there a name brand product, available to homeowners that you can suggest and a suggested place to purchase?
I've looked at some stores (ex. tractor supply) and they carry herbicides in different varieties of their chemical makeup.
Examples:
2,4-D, dimethylamine salt 7.59%
I've looked at some stores (ex. tractor supply) and they carry herbicides in different varieties of their chemical makeup.
Examples:
Trimec Lawn Weed Killer
2,4-D, dimethylamine salt 7.59%
Mecoprop-p, dimethylamine salt 1.83%
Dicamba, dimethylamine salt 0.84%
----------------------------------------------------
Dimethylamine salt of 2,4-dichlorophenoxyacetic acid 30.56%
----------------------------------------------------
Trimec 899
Dimethylamine salt of 2,4-dichlorophenoxyacetic acid 30.56%
Dimethylamine salt of (+)-(R)-2-(2-methyl-4-chlorophenoxy)propionic acid 8.17%
Dimethylamine salt of dicamba (3,6-dichloro-o-anisic acid) 2.77%
----------------------------------------------------
Ortho's Weed B Gone Max
2.13% Quinclorac
6.42% 2,4-D
0.60% Dicamba
----------------------------------------------------
I can't seem to find a herbicide with the exact ingredients suggested and the percentages of 2,4-D & dicamba come in many various different percentages.
If you had to recommend either of the above three products, which would be best controlling/eliminating Virginia ButtonWeed? Or can you recommend something else?
What is the percentages of the active ingredients I should be trying to find?
----------------------------------------------------
Ortho's Weed B Gone Max
2.13% Quinclorac
6.42% 2,4-D
0.60% Dicamba
----------------------------------------------------
I can't seem to find a herbicide with the exact ingredients suggested and the percentages of 2,4-D & dicamba come in many various different percentages.
If you had to recommend either of the above three products, which would be best controlling/eliminating Virginia ButtonWeed? Or can you recommend something else?
What is the percentages of the active ingredients I should be trying to find?
Here is a link to some additional brand names from a U of GA publication. The percentage of active ingredients will vary but if you follow the mixing recommendations they willl be effective on Buttonweed control. If you don't have too much hand removal at this time of the year might be your best bet though.
http://www.caes.uga.edu/Publications/pubDetail.cfm?pk_id=7987
http://www.caes.uga.edu/Publications/pubDetail.cfm?pk_id=7987
