8 Department Circular 79, U. S. Dept. of Agriculture. 



CONCLUSIONS. 



1. The tropical fowl mite (Liponyssus bursa) is a recently intro- 

 duced poultry parasite. 



2. The two known infestations in the United States have appar- 

 ently been stamped out. 



3. If the pest becomes generally established in this country it will 

 undoubtedly constitute a serious menace to the poultry industry: 

 hence it is important that it be excluded or, if introduced, promptly 

 eradicated. 



4. Since this mite feeds and breeds on poultry it could be intro- 

 duced readily into the country and disseminated through the ship- 

 ment of infested stock. 



5. It may be stamped out either by dipping fowls in sulphur, soap, 

 and water, or by giving them a heavy dusting with sulphur. At the 

 same time the houses, especially the nests, floors, and dropping 

 boards, must be treated with carbolineum. 



6. A continuous war against the English sparrow should be insti- 

 tuted in a locality where the mite is discovered. Xests should be 

 robbed and destroyed by fire and the nesting places eliminated. 



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