SCREWWORM 



j ATTRACTANCY OF INOCULATED AND INCUBATED BOVINE BLOOD FRACTIONS TO SCREWWORM 

 FLIES (DIPTERA: CALLIPHORIDAE): ROLE OF BACTERIA DeVaney, J. A., Eddy, C. W., Ellis, E. M. and 

 Harrington, R., Jr. J. Med. Ent. Vol. 10, No. 6, Dec, 1973. (Abstract of Published Report) 



Olfactometer tests in the laboratory with bacteria-contaminated citrated whole bovine blood, bacteria- 

 inoculated sterile citrated whole blood, defibrinated blood, and blood plasma indicated that the attraetancy of these 

 materials to screwworm flies, Cochiomyia hominivorax (Coijuerel), resulted from the bacteria and/or from the 

 compounds produced by them. Aseptically drawn blood incubated at 37 C. for 7 days was no more attractive than 

 unincubated blood held at 5° C. Ranking of attractiveness was bacteria-inoculated sterile defibrinated blood > 

 bacteria-inoculated citrated whole blood > bacteria-inoculated plasma > sterile-incubated defibrinated blood- 

 distilled water. 



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