how to kill these 2 weeds? PLEASE HELP

Discussion in 'Pesticide & Herbicide Application' started by 00bolt, Aug 6, 2012.

  1. 00bolt

    00bolt LawnSite Member
    Posts: 32

    my backyard has been taken over with these 2 weeds. I live in Texas and my yard is a mixture of st. augustine and bermuda. Im hoping the st. augustine will eventually completely take over as its already about 60%.

    that being said, i have had a hard time trying to figure out what to put down that wont kill the st. augustine. i put down some altrazine about a month ago and it browned up the bermuda pretty bad and killed some of the clovers, etc. but didnt do anything for these 2 things.

    i have attached a few pictures. the one stuff looks like a green onion and stays in little clumbs of 4-5 blades and grows tall pretty quick.
    the other stuff is a different color green, kinda darker and stays low and spreads out wide.

    any ideas on what I can put down to kill these things? Anyone know the name of what they are?

    2012-08-06 20.06.44.jpg

    2012-08-06 20.07.02.jpg

    2012-08-06 20.05.48.jpg

    2012-08-06 20.06.00.jpg

    2012-08-06 20.07.16.jpg

    2012-08-06 20.06.18.jpg
     
  2. FoghornLeghorn

    FoghornLeghorn LawnSite Senior Member
    from Texas
    Posts: 752

    Atrazine and Sedgehammer
     
  3. Ric

    Ric LawnSite Fanatic
    Posts: 11,956

    Nope Atrazine is not going to work. Try again.

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  4. v6rs97

    v6rs97 LawnSite Member
    Posts: 234

    Is the second picture crab grass? Acclaim?
     
  5. cgaengineer

    cgaengineer LawnSite Fanatic
    Posts: 15,782

    A homeowner with St Augustine is an accident waiting to happen.

    Don't know much about SA, but I do know that Celcius is one chemical labeled for use on some cultivars of SA.
    Posted via Mobile Device
     
  6. bug-guy

    bug-guy LawnSite Senior Member
    Posts: 968

    celcius and sedgehammer. you might have to try earlier in the yr and get on a pre-m program

    joe
     
  7. Yes second pic is CG. Don't know if Celsius will work on that variety though...
    Posted via Mobile Device
     
  8. 00bolt

    00bolt LawnSite Member
    Posts: 32

    thanks for your help guys.

    Will any nutsedge killer from a big box store work or should I order the sedgehammer from amazon or somewhere online?

    As for the other stuff, possibly crabgrass... is there anything else I can get other than the celsius that might work? Looking online, that stuff looks to be over $100 and thats more than I want to spend on my backyard to kill some weeds. My front yard is all bermuda and i still have some old msma that works wonders, wish it wouldnt kill the SA.
     
  9. Ric

    Ric LawnSite Fanatic
    Posts: 11,956

    You might want to convert your Back yard to all Bermuda. Bermuda is easier to weed control and popular in most of Texas. You can get improved varieties of common Bermuda that will establish by seed. From the present look of you yard, there doesn't seem to be a lot of St Augustine.


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  10. Kylec3

    Kylec3 LawnSite Member
    Posts: 127

    yellow nutsedge and crabgass... our two main summer weeds up here...use sedge hammer...itll do the best job on the nutsedge....i use drive up here for crabgrass or q4 but this is on cool season grass...not sure whats labeled for st aug.
     

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