Sage 
pyrethrins and 10 percent of piperonyl 
butoxide is available. Dilute this con- 
centrate 1 part to 19 parts of water, 
and apply at the rate of 2 quarts of 
spray per animal, or use higher con- 
centrations if less spray is applied. 
One treatment will usually control horn 
flies for 5 to 7 days. Repeated treat- 
ments will give longer protection, be- 
cause fewer flies will be breeding in 
animal droppings. 
To protect treated dairy cattle from 
reinfestation from infested cattle near- 
by, also apply a spray to bulls, young 
dairy stock, and beef cattle. DDT and 
TDE, as well as methoxychlor, may 
be used for this purpose at the same 
concentrations (0.5 to 1.5 percent) 
and appliedin the same way suggested 
for methoxychlor ondairycows. Toxa- 
phene has also recently been recom- 
mended for controlling flies on cattle 
other than dairycattle. It is also rec- 
ommended as a 0O.5-percent spray. 
However, this is the maximum con- 
centration recommended, even if less 
than the usual 2 quarts per animal is 
applied. 
If all the farmers is a community 
will treat their cattle regularly, horn 
flies willbe controlled with much less 
cost and effort. 
Control of Stable Flies.--The stable 
fly stays on the animal only long enough 
to get a meal of blood. It then rests 
in or outside barns, on trees, corral 
fences, and in other favorable places. 
It breeds in piles of fresh manure and 
straw and in moist places where feed 
has accumulated. Because this fly is 
