I have round uped it, Co Oped it, using 2 things the man sez it will take it right out. Bull Snot it got it 50% of the grass/stems but no full kill. How about spraying it with Diesel? Fill me it and I will dance at your next weeding or divorce which ever comes first. Dave Tenn
How many applications of glyphosate did you do? How far apart were the applications? Did you thoroughly irrigate 1 day before the application? Did you irrigate again, two days later?
You won't kill it with one magic application. The best herbicides for it's control, you can't purchase as a homeowner. Sucks, but that's the feds' rules.
*****Effective herbicides on yellow and purple nutsedges are:
Pennant (metolachlor) Basagran T/O (bentazon) Image (imazaquin) Roundup (glyphosate) [1]
Pennant is a preemergent, so that's out for now, but something to think about for next spring. ;)
Basagran T/O is a postemergent [2], and works best on yellow nutsedge.
Image is also a postemergent [3], and works best on purple nutsedge (you didn't specify which).
Roundup (glyphosate) will work well also, much to your disbelief.
*****For any of the above applications:
It also pulls very easily out of the ground, usually with the tubers intact, unless it's a large, well-established patch (not first-season plants). You'd be suprised how quickly an area can be cleared of nutsedge, just by pulling it out. ;)
If you can't/won't pull it, your best bet is probably using glyphosate. Just watch your over-spray. ;)
Notes:
[1]. If you can avoid buying the brand name "Roundup", do it. Look for "glyphosate", it's the active ingredient. Scotts lost their patent, and therefore their monopoly on glyphosate. The price difference is worth the extra searching. [2]. Requires the use of a crop oil (1.0% V/V). [3]. Requires the use of a non-ionic surfactant (0.25% V/V).HTH
[....]
mix 3 ounces Gly Star? Original with each gallon of water in the mix container. then add 3 to 5 drops of Joy dish washing detergent for each gallon in the mix container. the detergent makes the Glyphosate mixture stick longer on the plant and has the effect of producing a better and more effective kill. without the use of a surfactant nut grass is near impossible to kill due to the limited surface area available on nut grass for chemical adhesion. you can spend the extra money for the Gly Star? Plus, however, the Joy works just as well.
yes, technically defined, it was named nutsedge. but, some of us are still going to call it nut grass!
Basagran works great for me. I use that to selectively kill it on lawns. I would also think glyphosate would be effective too, as that kill just about anything, except for genetically engineered soybeans and similar crops :)
=P
You need to buy something specifically for nut sedge. Manage is one brand. With Manage, you need a surfactant also. I have to buy Manage from a gardening store. It's not at Walmart, Target, etc. Lots of great info here
The best way to remove small plants is to pull them up by hand or to hand-hoe. If you hoe, be sure to dig deeply (at least 8-14 inches) to remove the whole plant. Using a tiller to destroy mature plants will only spread the infestation because it moves the tubers around in the soil. However, repeated tillings of small areas before the plants have six leaves will reduce populations. Many people mistakenly use systemic herbicides such as glyphosate to try to kill the tubers after the plant is fully grown. Unfortunately, when tubers are mature there is little translocation of the herbicide from the leaves to the tubers, thus tubers are not affected.
If nutsedge is found in small patches in turf, it may be best to dig out the patch at least 8 inches deep, refill, and then seed or sod the patch.
Biological control of nutsedge using insects and plant pathogens has been researched, but as of yet has not provided consistent control.
In addition to consistently removing small plants, nutsedge populations can be reduced by shading, drying, mulching with geotextiles, and with properly timed applications of herbicides.
Basagran works great for me. I use that to selectively kill it on
Were can I buy Basagran at? Is it a Co Op.. I bought 2 packets of Sledge Hammer from them and it did not do diddley poo. Must have been the other kind of Sledge? Thank all you guys for the comments
Also I was thinking to weed eat it all up and then spray. That way there would not be as much leafs to transfer down to root.
That would be the worst thing to do before a foliage absorbed kill application, wouldn't it?
not if you wait till the new baby foliage starts regrowing before you hit it.
Lesco or similar agri/landscape supply house will have it.
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