——— rl —s 
g 
a 7 
LEAFLET No.283 
FA 
FLY CONTROL 
on 
DAIRY GATTLE 
and in 
DAIRY BARNS 
BUREAU OF 
ENTOMOLOGY 
and 
PLANT QUARANTINE 
: AGRICULTURAL 
: RESEARCH ADMINISTRATION 
U.S. DEPT. of AGRICULTURE 
APRIL 1950 
