how to kill crabgrass

saxytuba

16 years ago

I live in CT. What is the best product to kill crabgrass without killing the rest of the lawn? Thanks,

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Comments (2)

bestlawn
16 years ago
I'm hoping you are not talking about killing crabgrass right now because there isn't any right now. So, you may want to positively identify whatever the weeds are that you think is crabgrass. Crabgrass begins germinating about this time of year after temps are consistently above 50Â° for several days. The plants begin growing, but you don't begin to really see them until late May or early June. They continue germinating and growing through spring and into summer, and you continue to see new plants through July and maybe August.

Right now is the time to apply pre-emergent herbicide to prevent them from growing. Successful efforts toward prevention means you won't be inundated this summer.

To answer your question, there are products by both Bayer Advanced and Ortho that effectively control crabgrass when you see them in summer.
rdaystrom
16 years ago
Monosodium acid methanearsonate otherwise known as MSMA kills Crabgrass as well as Nutsedge. It is sold under a variety of labels and concentrations. Read the labels and bypass the brand names. Find out what you're spraying. Be sure your type of grass will not be affected before you buy.
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I can asure you that what you are looking at is NOT crabgrass. You are either looking at Orchardgrass or Annual Ryegrass. Take a picture of the "crabgrass" as you call it, then post it here. If you can't, then describe exactly what you are seeing. Crabgrass does not germinate in Eastern NC until early to mid April, late April to early May in Central NC - even on South Western exposure lawns.
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Comments (14)
If that concrete is on a south or west side, it could be crabgrass even this early. Crabgrass normally sprouts in warm soil in May. Concrete absorbs heat and could have helped germinate the seed. Also, normally it comes up light green at first. Yours is dark green with purple in it. Anyway, spraying it while it might be weakened from the cold is one approach. You can try that but at the same time try fertilizing it now and spraying it again in 2 weeks. Many weeds die best when they are strong, not weak. Another thing you can try is baking soda. Search YouTube for the video put together showing how it kills crabgrass in a St Augustine lawn. St Aug is unaffected by the baking soda but the crabgrass turns black and withers away in a couple days. Be careful because most grasses will wither and die with baking soda. Only use it on the crabgrass. If you have Kentucky bluegrass, then you still have time for the grass to spread back in.
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Comments (5)
This is interesting. Apparently the OP likes the mix of bermuda and clover. And as TW pointed out, you likely would not have any clover if you had been fertilizing along the way. The next irony is that the reason you have crabgrass is the same reason you have clover. You have stopped fertilizing and the bermuda has thinned out allowing other plants to move in.
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Q
Comments (8)
here's what it does if i don't pay attn to it for a couple of weeks. LOL here's what it looks like when i pulled it out, with some long roots. i had to have tabor "my son> hold it up LOL but this is a small one, just to give ya'll an idea what this crud is like. and some have really thick stems!! do ya'll have any idea what kinda grass it is?? by chance and how to kill this stuff?? its all over my garden and everywhere else in my flower beds. i don't want to use any heavy un organic things. so far i've been using newspapers, and i put 5 of them down, overlapping and them things grew right on up through them!! i was never so amazed in my life!! i have some osb down in an area, and it still grows, i don't mean like a month later i lifted the board, i'm talking 3 months later. this is some stuff on steroids!!! LOL its just crazy!!! LOL what are your target plants??
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how to kill crabgrass

Comments (2)

bestlawn

rdaystrom

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