earthworms + Sevin

Discussion in 'Pesticide & Herbicide Application' started by americanlawn, May 9, 2008.

  1. americanlawn

    americanlawn LawnSite Fanatic
    from midwest
    Posts: 5,852

    Area golf courses apply Sevin (especially during the spring) to temporarily knock down the earthworm population to reduce bumpy turf. We use it to discourage mole activity, cuz Sevin is toxic to worms, yet is a fairly safe product (used in flea/tick shampoos for pets) . Anybody else use Sevin or similar products to knock down earthworms/nightcrawler population?
     
  2. Marcos

    Marcos LawnSite Gold Member
    Posts: 3,720

    Look out !!

    The environmental "TOXIC AVENGER" strikes again !!

    :cool2:
     
  3. ted putnam

    ted putnam LawnSite Platinum Member
    Posts: 4,539

    I am by no means an "organic" lawn guy but I kinda like seeing earthworm activity. They help loosen the soil and that to me is beneficial. While we do have moles here. They are generally not a major problem. I have used Sevin in the past for armyworm control. I've never sprayed it for the sole purpose of knocking back earthworm populations.My State paperwork states that I am licensed to treat for insects and diseases feeding on or damaging the lawn. Earthworms don't fit in that niche.
     
  4. americanlawn

    americanlawn LawnSite Fanatic
    from midwest
    Posts: 5,852

    I understand where you're coming from. Sevin is labeled for and effective on over 100 insects & mites for turf, trees, shrubs, vines, ground covers, vegetables, etc, etc. If your are licensed to treat turf only....here's some turf insects that Sevin is labeled for: ants, cutworms, sod webworms, army worms, aphids, grubworms, grasshoppers. There's a lot more. Sevin dust is commonly used on foods that humans eat (tomatoes, cucumbers, grapes, and a whole lot more).

     
  5. greendoctor

    greendoctor LawnSite Fanatic
    Posts: 9,054

    If Cleary 3336 is applied at the root disease rate and watered in as per the label. There is usually a drastic decrease in earthworm activity. Try googleing "thiophanate methyl & earthworms" I know this chemical is actually labeled for this use in England. Unless you are trying to keep a putting green or bowling green, should not be a big deal if there are castings. Earthworms are active near the surface if the soil is heavy, poorly aerated and overwatered. Instead of using Sevin or 3336, I educate clients about proper watering practices and soil management. They probably need to cut down on their watering and core aerate+topdress the lawn.
     
  6. bug-guy

    bug-guy LawnSite Senior Member
    Posts: 966

    earthworms are benefical insects and rose bushes are beautiful shrubs, but if a rose bush was growing in a cornfield it would treated as a weed(undesirable growth). have you ever seen what worms can do to a putting green
     
  7. Subterfuge

    Subterfuge LawnSite Member
    Posts: 8

    You really have to know your stuff to know that!!!:weightlifter: I am extremely impressed. Not even all golf course supt know that mix.
     
  8. greendoctor

    greendoctor LawnSite Fanatic
    Posts: 9,054

    I am guilty of treating a lawn for "cough, cough" both summer patch and billbug damage 4 oz 3336 + 6 oz Sevin SL watered in immediately.. It is not a routine application for me. However, I can see doing it if it bothers the client that there are ping-pong ball sized castings all over the lawn and they are not overwatering. I will otherwise leave it alone.
     
  9. Marcos

    Marcos LawnSite Gold Member
    Posts: 3,720

    So why hold all this against the worms ?

    They were around on this planet eons before any stupid golf course was !!!

    :)

    (....and....more than likely...they'll be here EONS after we're all dead and gone !!!)
     
  10. bug-guy

    bug-guy LawnSite Senior Member
    Posts: 966

    so have roaches, rats and snakes...
    need to look at the term pest.

    that's like saying pot is organic so it must be good
     

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