Show if I Sprays for Flies Ought f to Be Applied in Summer The cost of spraying a n herd of ten tent t cows for a day 90 period during the fly season Is Is' Is approximately 2 when h V either df the following sprays Is used according to the entomology department depart depart- ment meat Purdue university Spray No 1 t a n. stock dip gallon f Oil of ot tar 2 2 gallons Kerosene 2 2 gallons Spray No 2 I Fish oil 2 quarts Oil of ot tar 1 1 i quart Cru Crude e carbolic acid 5 3 ounce J These sprays were used In a test r r. r during the fly season of or 1924 1024 on several soy sev- eral Indiana dairy herds The conclusions con at the end of the test that the sprays should be applied ap plied faithfully throughout the fly ny sea seaS son Where only one application was wm 1 made a day It was found that sprayIng spray spray- Ing Immediately ly after the morning milking gave the best results II It should be applied to every part ol of I the body Including the legs and under un un- der parts as a fine spray An odorous J J Tray Spray proved to be more effective that 1 the odorless mixtures The cows thai that were sprayed were markedly quieter less nervous grazed more peaceably and stood quieter at milking than unsprayed un sprayed cows Herds nerds that were sprayed i f showed a n diminishing number of as the season advanced |