-85- 
Otobius megnini (Duges), the ear tick 
A mixture of 5 parts of chlordane and 95 parts of pine oil introduced 
into the ears of cattle remained effective for 22 days and was considered 
at least at effective as a mixture containing 5 percent of BHC in repelling 
larvae of this tick, — U. S. Bur. Animal Ind. (465). 
Psoroptidae 
Psoroptes eaui var. cunlculi (Delafond), the ear mite 
These mites on a rabbit were not killed when the rabMt was fed chlor- 
dane. — Knipling et al. (266). 
Demodicidae 
Demodex canis Leydig, the dog follicle mite 
Sarcoptidae 
Sarcoptes scabiei canis (Gerl.), mange or sarcoptic mite of dogs 
Jive dogs heavily infested with sarcoptic mange, of which 3 had lesions 
of demodectic mange, were treated with an emulsion of 0.25 percent chlordane. 
All treatments were applied by dipping the animals and holding them in the 
liquid for from thirty to sixty seconds with at least two complet submerg- 
ences. The dip was warmed to a temperature of 100 to 110° T. Exception- 
ally large or heavy demodectic lesions were scrubbed with a firm-bristled 
brush while the animal was in the liquid. The dogs treated with chlordane 
were allowed to run with untreated animals. One of the chlordane-treated 
dogs that was heavily infested with sarcoptic and demodectic mange also 
had several small demodectic lesions three weeks following treatment. As 
isolation of the test animals was not complete, no further checks on the 
test were made. None of the animals showed any ill effects from the treat- 
ments. — Muma and Spencer ( 336 ) . 
Chlordane was effective in treating common and red mange in dogs. The 
dogs were dipped in a 50-gallon barrel half filled with a 0,25 percent 
chlordane solution, and held In the dip for 30 to 60 seconds. — Spencer 
Gfi2. i£5). 
Sarcoptes scabiei suis (Gerl.) 
One application of a 0.25-percent chlordane solution thoroughly applied 
completely cleaned up sarcoptic swine mange on 800 infested hogs in Nebraska. 
The 0,25-percent chlordane solution was made by adding 500 ml. of 74-percent 
emulsifiable concentrate to 50 gallons of water. This was applied with a 
power sprayer using from 1 to 2 quarts per head with from 50 to 250 pounds 
of pressure—Spencer (JQadaS) . • pL ^ ^^ 
