Get the maximum strength Roundup or Ortho Killzall concentrate and a tank sprayer. Mix the Roundup triple strength and add a few ounces of vegetable oil per gallon. Spray areas of the torpedo grass. Depending on level of infestation, you'll likely have to kill large areas of your lawn. Repeat treatments over a couple of weeks, to make sure you've really gotten it. Re-sod, or seed the dead parts of your lawn. Watch very carefully for new sprouts of torpedo grass and retreat- this time spot treatments will work since the weed will not be as wide spread. Areas bordering concrete are very likely to have some regrowth.
Don't- waste any time pulling torpedo grass, even if you dig it out. Pulling encourages growth, and getting every last bit of tuber-like rhizome is impossible. Chemicals are the only thing that seems to have an effect.
Some Professor at the University of Florida is working on a fungus to take care of it. Guess we'll wait and see!
July 2009
anyone would be stupid to use any round up for this. Round up is linked to cancer: "Bayer reaches deals on many of its 125,000 Roundup weedkiller lawsuits" for example. Do you want to risk it?
"Grass" is green and covers lawns and fields.
Right about the time they started having lawns.
Grass is the correct spelling (plants used for lawns).
Artificial lawns somewhat feel like real grass but they aren't naturally grown.
Diesel fuel
Rakes are used by gardeners and those who want to get rid of grass clippings and dead leaves on their lawns. Rakes are also used to scratch the soil and start seeds.
Hogs. Moles
You cut lawns diagonal so your grass looks nice and it makes your neighbors envious.
how do i get rid of johnson grass in my lawn?
A large area of grass, usually around a house or building.
forver green lawns
apply a Pre-emergent in the fall.