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BBN
08-02-2008, 09:37 AM
I have Bermuda in the front yard and yellow nutsedge has blended itself in with it. It makes the lawn look alot taller than what it is since it grows so fast. What would be a good herbicide to kill it off? Thanks

ATVracer
08-02-2008, 10:10 AM
Sedgehammer, make sure you use a sticker when mixing. It may take multiple applications since it grows from seed and tubers, and is likely to reinfest the same areas the following years until you eradicate it all. My supplier sells a small bottle covering an acre or more for $100, or individual use packets are close to $10 and makes 1-2 gallons of mix.

tremor
08-02-2008, 10:43 AM
http://www.fmcprosolutions.com/LawnCare/Products/Herbicides/Dismissturfherbicide/tabid/1287/Default.aspx

Dismiss is the latest & greatest for nutsedge. The label claims good Bermuda tolerance.

Warm season guys?

Az Gardener
08-02-2008, 10:48 AM
My rep just recommended "Certantied" Sp? I can't comment yet as we just applied some last week.

greendoctor
08-02-2008, 02:39 PM
Certainty is what I use in the "sedge paradise" of America. This goes down at 1.25 oz/acre + 1 oz Quicksilver and 1 qt MSO. This mix causes dramatic damage to sedges within 5 days. Would rather use Dismess, but it is illegal here.

Whitey4
08-02-2008, 04:26 PM
SedgeHammer has worked very well for me... it takes two weeks, but the kill is excellent. But.... I am on cool season grasses and zoysia.... know nothing about Bermuda.

LTL
08-02-2008, 04:34 PM
BBN
How does your Bermuda do in IL. Do you have much winter kill? I didn't know Bermuda was used much north of Kansas City. Just interested.

RAlmaroad
08-02-2008, 04:46 PM
I've used it all. Sedgehammer is good--use a good sticker and remember that it has a shelf life of about 4-6 hours depending on the PH of your water. Dismiss is best of all but really expensive. I've treated all of my lawns and they are Kyliinga free, and Sedge free. The overwaterinig and shallow watering will promote the sedges even more. Another good treatement is a Simazine and Image mix, or a Simazine and Basagran mix. On other turf Vantage/Basagran will work extremly well, but Vantage can not be used on Bermuda.
Read up on the label of the Image/Simazine combo or use the Sedgehammer and sticker.
Roy

turfman07
08-02-2008, 04:53 PM
sedgehammer is good, but i like using certainty because it will also control green kyllinga. certainty doesn't work as fast as sedgehammer, but it does a good job. remember, you have to use sticker like Ralmaroad said.

Fert33
08-02-2008, 10:26 PM
dismiss or sedgehammer are good I think. I have had success with both of them. watch your temps. with application to warm season turf.

Whitey4
08-02-2008, 11:07 PM
I've used it all. Sedgehammer is good--use a good sticker and remember that it has a shelf life of about 4-6 hours depending on the PH of your water. Dismiss is best of all but really expensive. I've treated all of my lawns and they are Kyliinga free, and Sedge free. The overwaterinig and shallow watering will promote the sedges even more. Another good treatement is a Simazine and Image mix, or a Simazine and Basagran mix. On other turf Vantage/Basagran will work extremly well, but Vantage can not be used on Bermuda.
Read up on the label of the Image/Simazine combo or use the Sedgehammer and sticker.
Roy

I don't see this shelf life limitation on the label anywhere.... where did you get that info? I had some leftover in my backpack, and added another gallon mix for one more spot spraying job. I did not notice any deduction in kill power. My water pH is 6.2. Thanks...

greendoctor
08-03-2008, 04:21 AM
In your location, do not use the simazine/Image mix on anything but zoysia. This is one of the best things to destroy cool season grasses. All sulfonlyurea herbicides(Certainty, Manor, Revolver, Sedgehammer) are deactivated by acidity. They are most stable at 7-8. If you look at the DuPont ag and IVM website, there are technical bulletins on this subject. I do not like the idea of keeping a mix for more than one lawn. It makes calibration and target of application a pain. I often tank mix postemergent herbicides, depending on what weeds are present in a particular lawn. However, I consider it a misuse and waste to broadcast a herbicide just because it is in the tank. I am probably similar to you, in that if I cannot justify a broadcast application, I will reach down and pull a few weeds. I do not spot apply herbicides.

Whitey4
08-03-2008, 01:49 PM
In your location, do not use the simazine/Image mix on anything but zoysia. This is one of the best things to destroy cool season grasses. All sulfonlyurea herbicides(Certainty, Manor, Revolver, Sedgehammer) are deactivated by acidity. They are most stable at 7-8. If you look at the DuPont ag and IVM website, there are technical bulletins on this subject. I do not like the idea of keeping a mix for more than one lawn. It makes calibration and target of application a pain. I often tank mix postemergent herbicides, depending on what weeds are present in a particular lawn. However, I consider it a misuse and waste to broadcast a herbicide just because it is in the tank. I am probably similar to you, in that if I cannot justify a broadcast application, I will reach down and pull a few weeds. I do not spot apply herbicides.

I had about a gallon of a sedgehammer mix left in my backpack for about a week.... and then had two pretty infested lawns to treat. There were large patches of nutsedge, ranging from 100 sq ft to 500 sq ft sections. I added another gallon to the backback and treated. That was a week ago, so it's too early to tell if I screwed up and might have to reapply. I guess I'll know by next weekend....

prizeprop
08-03-2008, 02:17 PM
Any success using dishsoap as a sticker? Thats what lesco told me to use.