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preemergents of spring

Discussion in 'Pesticide & Herbicide Application' started by IGROTURF, Dec 31, 2002.

  1. IGROTURF

    IGROTURF LawnSite Member
    from CHAR NC
    Posts: 34

    what is everybody going to do about your preemergent apps this spring?
    In th past I have done splits. I am in the south and I swear my growing season never ends. I need crabgrass control until aug.

    I like dimesion at .25lb of ai twice with .75lbs N round 1 .50 round 2.

    Have a great new years and my your turf be green and weed free!!!!!:)

    igroturf in N.C.
     
  2. greenman

    greenman LawnSite Addict
    Posts: 1,405

    I, too, use split apps of Pre-M. I have been using Lesco pre-m, with good results. Dimension costs more but will give better results because of its density. I may try it this time around. Some of my fall pre-m's were applied a little late, so I have had (and still am) to spot with Atrzine or round-Up for poa anna. I used Lesco pre-m for the fall apps.
     
  3. IGROTURF

    IGROTURF LawnSite Member
    from CHAR NC
    Posts: 34

    GREENMAN THANKS.

    I GUESS YOU ARE TREATING BERMUDA FOR POA CONTROL WITH PRE-M. DID YOU TRY THE 2LB ai RATE?
    I HAVE DONE .50 OF DIME IN LATE AUG SEEDED W/ PRG IN 60 DAYS AND THEN TREATED AGAIN IN 1ST FEB WITH .25 DIME FOR THE SECOND FLUSH OF PAO WITH GOOD LUCK.

    MUST OF THE TURF I TREAT IS TURF TYPE TALL FESCUE.

    IGROTURF.
     
  4. greenman

    greenman LawnSite Addict
    Posts: 1,405

    No, I have not tried the 1/2 rate (split app.) for fall. The reason for the poa anna emerging is because on a few properties (approx.8 or 10), I did not get good control because I did not get the pre-m down until Nov. (I know,way too late,that's how busy I was). The turf I maintain is Bermuda and zoysia (my favorite), and a little St.Auggie and Centipede.
     
  5. IGROTURF

    IGROTURF LawnSite Member
    from CHAR NC
    Posts: 34

    I THINK THE SPLIT RATE FOR PRE-M 1.5 LBS OF ai PER ACRE, WHAT YOU COULD TRY IS THE 2LB RATE WHICH (CHECK THE LABEL) WHICH IS 9600 SQFT PER BAG. I HAVE BOUGHT LESCOS 5-10-20 PRE-M THIS MAKES A NICE WINTERIZER FOR WARMSEASON.

    IGROTURF
     
  6. greenman

    greenman LawnSite Addict
    Posts: 1,405

    The apply rate is 4.0 lbs/1K. Thats why I thought you meant split app with 2 lbs. per. For me, split apps for fall is not needed, I just need to make sure I get it down early enough so there will be minimal to no post-m spraying with Atrazine or Round-Up (with a surfactant) on dormant turf. However, split applications of 2 lbs per 1K is recommended in spring for maximun control for crabgrass.
     

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