Lice Treatment Questions

Discussion in 'Predators and Pests' started by jnbelknap, Jan 30, 2016.

  1. jnbelknap

    jnbelknap Chillin' With My Peeps

    Apr 22, 2014
    Arroyo Grande, Ca
    I have a flock of 30. About half had a few lice on them in my last inspection. Only a couple were infested. I treated everyone with a thorough DE bath which did nothing--to my disappointment. I then resorted to Permectrin ii spray. I sprayed everyone. It has been 14 days. I do not see any leftovers.

    I understand that with some treatments that reapplication is needed due to the hatching eggs. I have waited until today to consider another application because the instructions clearly say not to reapply for 2 weeks due to the residual. So, are the eggs dead with this chemical? Should I reapply?

    Also, how long do you pull eggs for? I know technically you do not have to, but I only use medications or chemicals as last resort for my organic flock. I am in medical treatment and would not want any outside chemicals coming in.

    Lastly, I have 3 ducks that live with my flock. Should I treat them too? I do not see any signs.

    Thank you!
  2. Wyorp Rock

    Wyorp Rock Flock Master

    Sep 20, 2015
    Southern N.C. Mountains
    Not sure how long to pull eggs.
    Only thing I can find is not to ship swine for 5day to slaughter after treatment.
    There is a customer service phone # for the manufacturer, perhaps they may be able to give you a clear answer.
  3. Lady of McCamley

    Lady of McCamley Chicken Obsessed

    Mar 19, 2011
    NW Oregon
    My understanding is Permethrin spray and dust doesn't easily penetrate the skin to become systemic like Ivermectin does. It is considered a topical treatment. You would have to eat the Permethrin, bathe in it, or feed it to your chickens to get any substantial amount into your system or your bird's...and then it is still very low toxicity as mammals and birds eliminate it easily. It is only highly toxic to aquatic fish.

    Unless you spray directly on the egg shell, there is no contamination to the egg. Likewise with eggs sitting in bedding with dust sprinkled. (After all, it is used as garden dust with instruction to simply wash most vegetables before eating.)

    Just wash the eggs in case of residue on the outside shell. The insides will be fine as long as the egg didn't sit in a pool of spray (which they wouldn't have).

    Last edited: Jan 30, 2016

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