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 Sumner County Kansas "The Wheat Capital" | What can a guy use to kill Wild Onions in my fescue and burmuda grass yard. Everything is green and growing probably should have sprayed earlier when I used my broadleaf herbicide. |
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Martinsville, Ohio | Fescue is tough, don't know Bermuda grass that well, here is what an expert says:
WILD ONIONS: Scientifically, the plant is a wild garlic, but the visual effect is the same. Clumps of green wild onions can ruin the appearance of a soft, brown Bermuda lawn. Onions reproduce by seeds as well as via the bulblets underground. Because dormant bulblets can sprout in future months, control will take two sprays in spring, at six-week intervals, with either a non-selective weedkiller (RoundUp, Finale) or a herbicide labeled for broadleaf weeds (Weed B Gon, Wipe Out, etc). Follow with two sprays in fall, beginning when the onion foliage emerges. The chemical imazaquin (Image) can also be used for wild onion control. DO NOT apply when turfgrass is emerging from winter dormancy. DO NOT apply to newly planted or sprigged turfgrasses.
2,4D or Banvel stunts wild onion if not kill it and I assume you know the risks on your yard. MCPA would help some or one of the TriMec broadleaf killers. If you are spot spraying, add oil to stick to the onion.
Ed |
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 West Tennessee | The chems Ed mentioned will work for herbicide. Years ago "here in Tennessee" someone proposed a theory to me that onions (wild garlic) are much more prolific in soil that needed liming. From my experience I would agree that they are MUCH more plentiful then. Have you pulled a soil test to see if the yard needs lime?
Edit: Obviously the lime isn't a current solution but possibly a more long term solution. I've also heard of people using Harmony to suppress (I'm thinking suppression is about all any chemical will do to them) wild garlic but I'm going to bet the it's not labeled for that.
Edited by BHTN 3/26/2012 16:09
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Martinsville, Ohio | Yes, we always said onion ground needs lime and it does help.
Ed |
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 SE Wisconsin | Are you sure it is wild onion? We have had some issues this year with Star of Bethlehem. They look similar, Onions smell, but Star of Bethlehem doesn't. We researched and found that sulfentrizone works on them, Authority. |
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Eastern North Carolina | 2,4-D |
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 Little River, TX | Mr Billy I do so wish that were true. 
"here in Tennessee" someone proposed a theory to me that onions (wild garlic) are much more prolific in soil that needed liming. (8,000 ppm Ca & 6% free lime, spiced up with an 8 pH)
If there is one thing this soil does not need is more lime! With prober neglest we can have a solid lawn of wild onion tops. 
2,4-D does work, sort of. To stay om label you used Weed Be Gone from the Feed Store. 
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