Pre Emergent

Discussion in 'Fertilizer Application' started by Jonathan Johnson, Oct 12, 2013.

  1. Jonathan Johnson

    Jonathan Johnson LawnSite Member
    Posts: 36

    How many pounds of prodiomine pre emergent .38% 0-0-7 should be applied per 1000 square feet?
     
  2. Mscotrid

    Mscotrid LawnSite Bronze Member
    from USA
    Posts: 1,444

    Depends on the total amount of AI you want on the ground. Example if you want 3/4 lbs of prodiamine per acre you would take .75 divide by .0038 = 197 lbs to the acre, roughly 4 1/2 lbs per 1000.
     
  3. Turf Dawg

    Turf Dawg LawnSite Gold Member
    Posts: 3,720

    What type of grass being applied to?
    Length of control wanted?

    There are generally specs on the bag
     
  4. Jonathan Johnson

    Jonathan Johnson LawnSite Member
    Posts: 36

    Thanks guys. What does AI mean?
     
  5. ReddensLawnCare

    ReddensLawnCare LawnSite Bronze Member
    Posts: 1,652

    Active ingredient
    Posted via Mobile Device
     
  6. RAlmaroad

    RAlmaroad LawnSite Silver Member
    from SC
    Posts: 2,162

    Jonathan:
    The bag will have a recommendation for light, medium, or heavy applications. Most turf will benefit from the medium rate. The rate that you apply determine to a great extent on how long the pre em will last and be active. Also as mentioned some turf and time of year will determine rate. Most northern turf (Fescue and Bluegrass) should have your pre-em applied around March and that is determined by the area in which you live. The pre does need to be down before a seed begins to germinate but not too long. It does not keep the seed from germinating but will basically fry the first hair root that sprouts from the seed IF there is enough there to work. In addition, a pre-em will not last an entire season and will need to be re applied about 6-8 weeks apart which is (dependent on the rate). Check and read your bag. Or google the brand name and print out a label.
     
  7. Skipster

    Skipster LawnSite Bronze Member
    Posts: 1,074

    Nobody's referencing readily available university extension publications here?

    This industry may be in worse shape that I thought!
     
  8. Mscotrid

    Mscotrid LawnSite Bronze Member
    from USA
    Posts: 1,444

    Might just be that some of us do not need university publications....
     
  9. Skipster

    Skipster LawnSite Bronze Member
    Posts: 1,074

    No one gave a hard and fast recommendation. Extension pub would have been more helpful for a newby than what was provided here.
     
  10. phasthound

    phasthound LawnSite Platinum Member
    Posts: 4,560

    While I don't agree with some Extension Publications, the majority of them are very helpful and should be a source of info for all LCO's. It's been my experience that many (not all) LCO's ignore Best Management Practices and just go for the quick buck without solving the cause of the problem.
     

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