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Old August 1, 2010   #1
louise
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Does anyone know what can be used in vegetable gardens to kill nutgrass? Many weed killers say do not use in vegetable garden soils and to keep it as organic as possible.
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Old August 1, 2010   #2
b54red
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You can fence it off and put in hogs and they will root it out. Other than that I don't think anything will really get it out that is safe to use in the garden. Roundup will help control it but it will not get rid of it. I've had it for years in one flower bed and it has moved aggressively into my lawn from there.

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Does anyone know what can be used in vegetable gardens to kill nutgrass? Many weed killers say do not use in vegetable garden soils and to keep it as organic as possible.
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Old August 1, 2010   #3
tedln
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I used to have good results with a product called "Image". It is advertised as useful for the control of all grass type weeds. It works very well to control crabgrass. I used to use it on my lawn and it would selectively kill crabgrass and nutgrass with no harm to the lawn grass.

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Old August 4, 2010   #4
Talon1189
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The best way to control "nutgrass" is to get on your hands and knees with a cheap "sponge brush" and paint the leaves of the nutgrass with "Roundup"....I would recommend the "full strength" version and NOT the diluted cheaper version of the same ...this avoids any overspray but takes more time to apply. Patience is the key here........"full strength" here is the key for your labor.......Good luck as nutgrass is a very tough weed to defeat in both the lawn grasses as well as in the garden >>>>>>>>>>Talon
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Old August 5, 2010   #5
tomakers
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Originally Posted by Talon1189 View Post
The best way to control "nutgrass" is to get on your hands and knees with a cheap "sponge brush" and paint the leaves of the nutgrass with "Roundup"....I would recommend the "full strength" version and NOT the diluted cheaper version of the same ...this avoids any overspray but takes more time to apply. Patience is the key here........"full strength" here is the key for your labor.......Good luck as nutgrass is a very tough weed to defeat in both the lawn grasses as well as in the garden >>>>>>>>>>Talon
We use a lot of RoundUp in our commercial cranberry operation. It SHOULD NOT be used full strength. Dilution is necessary for the best results. If memory serves me 4:1 is the maximum that should be used. Using at the full strength kills only the top of the plant. It needs to be absorbed into the roots to really kill it. In my garden I just keep pulling it out, as I hate to use Roudup on my food.
JMO,
Tom
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Old August 5, 2010   #6
remy
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It is not a quick fix, but it is a safe organic one. If you pull it out and keep at it, you can defeat it. I have won the siege of the sedge(as I like to call it) doing this. It takes persistence and you can't get lazy about it.
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Old August 5, 2010   #7
b54red
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Remy, down here where the nutgrass pops up every day or two by the hundreds pulling is not practical or effective unless you can give it a couple of hours every day and dig up the nuts which are anywhere from 3 to 7 inches under the soil. I did this for two summers and it was a losing battle because once it gets going good you just can't get all the nuts out of the ground. Roundup will work but it has to be applied over and over and it is very hard not to get it on your crops.
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