Quack grass?

[Finlander]

What to do about quack grass as to how to get rid of it!

[Tippman]

Ortho makes a crabgrass killer concentrate that worked for me.

[gerty]

Tippman - you got a crab grass killer that got rid of you quack grass??? Must not have been quack grass, as I think the only thing that will get rid of your quack grass is round up or a thicker lawn. You can however get rid of the crab grass with the item you suggested.

[Tippman]

Sorry, thought it said crabgrass.

[The_Duckslayer]

And the difference between them is? I thought that they were one in the same. Have a good one and N Joy the Hunt././Jimbo

[gerty]

Duckslayer - I am not a lawn specialist by trade. Just asked on an early post about using a chemical called Drive 75 (you should be able to see it down the board a ways). Thought I had crab gras but, it wasn't touched by the Drive 75. I believe it was Powerstroke who replied and said I was probably trying to kill quack grass and not grab grass and that is why it didn't work. I know they are different, just can't explain to you what those differences are. Maybe someone on here can post a picture of the difference between the two. Would help me also.

[MuskieJunkie]

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And the difference between them is? I thought that they were one in the same. Have a good one and N Joy the Hunt././Jimbo

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They are completely different weeds. Crabgrass is a perennial weed, it need warm temperatures to germinate (that's why it thrives near concrete and tar hardscapes). In the metro area you won’t see it until about the 4th of July. Quack grass is a single bladed plant just like the Kentucky blue grass that you want to grow in your yard. To my knowledge the only way to treat quack grass is to kill everything and replant the grass you want.

The crabgrass has to be stopped by putting a pre-emergent on it in the spring. Which unfortunately will also stop any new grass seeds from germinating (like the stuff you put down after you killed the quack grass).

[LABS4ME]

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Crabgrass is a perennial weed, it need warm temperatures to germinate

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Crabgrass is actually an annual, that is why people yearly apply crabgrass preventer. It lives one season and dies after the first hard frost.

Good Luck!

Ken

[Powerstroke]

Crabgrass is an annual and needs seeds every year to grow. That is the large seed head you see on the crabgras some time in late june into July.

CRABgrass lays low to the ground spreads in a star pattern of 6-12" with seed heads.

QUACKgrass looks like single blades of grass that are relatively wide and grow faster and taller than the rest of your fine bladed grasses. It can get a seed head but usually doesn't unless you really let your lawn grow up to 6-8" before mowing.

SO, the only way to rid yourself on QUACK is to use roundup. A very tedious but effective technique is to get some roundup mixed up at the recommended rate. Mow the lawn. The quack should grow faster than the rest of the grass. It will make it taller and easier to find when looking for it. You can use a paintbrush or some sort of dauber or even osm erubber gloves with roundup on them and use it to brush or touch ONLY the quackgrass. This will kill it without having to kill parts of your healthy lawn. The big thing is to only touch the things you want to die and don't mix the roundup strong or it will kill other plants around it.