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Weed identification and solution

2,723 Views | 13 Replies | Last: 8 yr ago by agcivengineer
agcivengineer
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AG
I have a weed which seems to be taking over my yard that came from my neighbor. Ive never dealt with this and dont know how to kill it. Can you help me identify what it is?

It looks like st augustine, grows sideways of sorts, so its impossible to pick. What can i spray on it and not kill grass?

I put down a preemergent multiple times per year as randy lemmon would suggest, mow high, etc.
agcivengineer
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AG
http://imgur.com/a/K9QG0

https://imgur.com/wJkiJbM


agcivengineer
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AG
http://imgur.com/rALVLuK
rancher1953
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That was your first mistake in listening to Randy Lemmon and paying for those high price products he pushes. Take a sample and go to Producers Coop. in Bryan and talk with Dr. Bill Lazby, he will solve your problem. Better yet got to Neil Sperry's site and find the solution there. Be careful that the product you use is labeled for your lawn grass. If you use Imagine make sure you water it in good. The original Imagine will solve your problem but I not sure what grasses it harms. You must use it about 30 days apart and remember it is water activated.
rancher1953
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Looks like sandspur to me here is a link to a product that will work for St. Augustine remember water it in good.


http://www.imageforweeds.com/St-Augustine/index.html
AgResearch
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AG
quote:
Looks like sandspur to me here is a link to a product that will work for St. Augustine remember water it in good.


http://www.imageforweeds.com/St-Augustine/index.html

That does not look like sandspur as it is growing from rhizomes. More likely that it's common bermuda.

Repeat applications of atrazine will hold it back (eventually kill it) and not hurt the St Augustine. For post emergence control of bermuda you want to avoid irrigation/rainfall that would wash the chemical off the leaves for the first day after application. Also read the label regarding how many days before and after application that you should avoid mowing. Usually 3 days but I haven't read the label to confirm.


And I agree, Randy is just a guy that pushes whatever products are willing to pay him the most.
__________________________

Agronomist/Weed Scientist, Ph.D.
AgResearch
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AG
Also, if it's just in a few areas you could use a foam paint brush to bush Roundup on the weedy grass. Will kill it for sure and lets you avoid getting the Roundup on your St. Augustine.
__________________________

Agronomist/Weed Scientist, Ph.D.
Flashdiaz
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AG
what kind of grass is your lawn?
ftworthag02
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AG
as agresearch said, it looks like common bermuda
agcivengineer
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AG
Guys thanks for the comments.

I only follow the schedule of Randy, but not his exact products, so your comments make me feel better. Although I never had problems like this when I was using my own method, so I'm beginning to wonder...

Anyway, I have St. Augustine grass.

I dont think this is bermuda grass, the blades of the weed look awfully like St. Augustine...in fact if you look at my other pictures, it is hard to tell it apart. Also, I seem to suck at posting pictures...thanks for your patience.


I was thinking it was some sort of crabgrass, but I am clueless.

In terms of using roundup, it has spread way too much for that to be a reasonable solution. But I guess I could give that a shot.

agcivengineer
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AG
Let me see if this link works to show the picture


https://imgur.com/wJkiJbM
agcivengineer
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After reading more about common bermuda, I think yall mght be right. I always think of bermuda of being very thin blades, etc so I wouldnt have thought about this.


What is the best product for Atrazine that you recommend?
The Original AG 76
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AG
quote:
After reading more about common bermuda, I think yall mght be right. I always think of bermuda of being very thin blades, etc so I wouldnt have thought about this.


What is the best product for Atrazine that you recommend?
you can buy atrazine by itself. Ortho sells it. As usual add in a surfactant .
CCMD
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AG
What kind of grass does your neighbor have? My first thought when I saw your pics was Zoysia.
agcivengineer
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My neighbor had St. Augustine when it rains, otherwise he has dead grass....right now he has dead.
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