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  1. #1
    Join Date
    Jun. 24, 2004
    Location
    South Park
    Posts
    3,113

    Question Tiny red worms in water trough

    Finally got a chance to clean up my water trough yesterday - it was getting gunky and had algae - and I noticed some teeny tiny bright red worms at the bottom. Maybe a dozen or so 7 to 8 mm long and just bigger than thick thread.
    Any idea what they are and if they are harmful to my horse?
    With all the excess water we have been receiving here in Colorado my pens have been a big muddy mess and I did wait longer than usual to clean my troughs...
    A friend told me I was delusional. I almost fell off my unicorn.



  2. #2
    Join Date
    Jun. 30, 2006
    Location
    Middle Tennessee
    Posts
    4,661

    Default

    I said mosquito larvae at first, but I was incorrect. They're actually midge flies I believe.
    Don't fall for a girl who fell for a horse just to be number two in her world... ~EFO


    1 members found this post helpful.

  3. #3
    Join Date
    Jun. 9, 2012
    Posts
    385

    Default

    I had those in my troughs too. My BO told said they were mosquito larvae as well.
    Good to know they are actually midge flies - are those harmful?



  4. #4
    Join Date
    Jun. 30, 2006
    Location
    Middle Tennessee
    Posts
    4,661

    Default

    Some of them bite, some of them don't. There are midges that can be vectors for diseases, but none that I'm aware of in the US.
    Don't fall for a girl who fell for a horse just to be number two in her world... ~EFO



  5. #5
    Join Date
    Jul. 19, 2013
    Posts
    378

    Default

    If they're midges, they're aka Culicoides, which cause sweet itch in susceptible horses.

    I was also told they were mosquito larvae, though. (West Nile carriers). Around here they call them "wigglers".

    I don't think you want either one. If you have mosquito fish in your troughs, they will take care of the larvae, or you can buy mosquito "dunks", which are little floating donuts that kill larvae, but aren't harmful to fish or birds or horses.

    Lowes and Home Depot carry the Dunks.


    1 members found this post helpful.

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