Centipede grass...South...need advice

Discussion in 'Pesticide & Herbicide Application' started by dambro7, Apr 14, 2008.

  1. dambro7

    dambro7 LawnSite Member
    Posts: 3

    This may not be the right forum for this, but here goes:

    I appreciate any and all advice in advance:

    This is my first home and my first yard. I live in Mobile, AL (very sandy soil) and have centipede grass that is exactly 13 months old last week. I applied my first fertilizer (Lesco 15-0-15) three weeks ago. After two good weeks of rain, my yard is greener than it's ever been and is beginning to get thick. However, in hind sight, I think I should have just used a weed and feed because I'm getting a good deal of weeds of all varieties. What are my options now for getting rid of the weeds? I'm afraid of doing something stupid and burning the grass? How long do I need to wait to apply any kind of weed and feed? Any suggestions are welcomed.
    thanks
    jd
     
  2. PHS

    PHS LawnSite Senior Member
    Posts: 724

    I wouldn't weed n' feed, pumping up the N on Centipede isn't a good idea. Go to the nursery and get some weed-b-gone or something like that and spray seperately.
     
  3. greendoctor

    greendoctor LawnSite Fanatic
    Posts: 8,941

    Weed-B-Gon has triclopyr, which is a no-no on centipede. If you are a homeowner, wait until full green up and hit the weeds with Image or the 4% atrazine that can be found in hardware stores. If you have the means to evenly apply a set dosage per 1000 sq ft, it is ok to mix the two and really get the weeds out. The 15-0-15 was a good idea, centipede likes high potassium. Most lawn blends have too much phosphorus and nitrogen in relation to potassium. Good luck and congrats on your new home.
     
  4. RAlmaroad

    RAlmaroad LawnSite Silver Member
    from SC
    Posts: 2,174

    Good Advise and forget most things with 2-4D also. There's some with low dosage of Dicamba that could work but I still think there're iffy. Follow Turfdoctor, and if you get sedges or Green Kyliinga--write again.
     
  5. greendoctor

    greendoctor LawnSite Fanatic
    Posts: 8,941

    If you use Image, the kyllinga and sedges are gone. Here in Hawaii, Image was a salvation when it became available. Lawns here are always infested with purple nutsedge and kyllinga. When I was a kid, I remember my father experimenting with RoundUp to kill nutsedge in the lawn. Lawn looked like a missile test site afterward. One caution, please be sure that any lawn you spray with Image is well watered and fertilized or it will wipe out the lawn too. I have seen it happen.
     
  6. RAlmaroad

    RAlmaroad LawnSite Silver Member
    from SC
    Posts: 2,174

    Doc:
    On this east coast Image is good but was not effective on the sedges nor the kyliinga. Noted that my test were on a more severe test site. Image did well on most of the broader broadleafs but the thinner blades did not do so well. It did yellow them and two (2) more applications were needed to get them under control. But the next year the kyliinga was there again. Nutlets seems to be less affected. I mixed some Basagran with Atrazine on another of my graveyard looking sites, Dismiss, Vantage, Sedgehammer with sticker. (I had that red survey tape on sticks marking a 6' X 6' area with the herbicide on a stick). Back road county lot in SC. Anyway I tested several (3) other things. I row with two application, and yet another row of the 4 chem with three application. Each application was 14 days apart. This took me two months and by the end of the second month the Atrazine and Basagran had almost killed the whole plot. One of the best looking was the three application of Image that had been watered, and the cleanest was the Dismiss. Non got any water other than a few showers and a couple of soaker rains as it does on the coast.
    Not saying that Image was not totally uneffective; and yes, I watered it in the next day with about 4 gallons of water from the backpack because I didn't have water there. I could have filled up the barrel but felt that 4 gal would simulate rain.
    I really like Image and suggest it for control of many thing like dollarweed, spurge, shepherds purse, etc. I just found it requiring more applications. It could be because of weeds and turf going dormancy early and not being able to apply it early enough in the spring for it to be as effective in your state since you probably do not have a true dormancy season.
    Anyway, just good advise from you as ever.
     
  7. dambro7

    dambro7 LawnSite Member
    Posts: 3

  8. dambro7

    dambro7 LawnSite Member
    Posts: 3

  9. GreenthumbGA

    GreenthumbGA LawnSite Member
    Posts: 191

    We tend to use the 20 0 20 with atrazine from lesco. They sell the atrazine seperate. I have seen it at the feed and seeds to. Matter of fact, I have seen it at lowes.
     
  10. PHS

    PHS LawnSite Senior Member
    Posts: 724

Share This Page