Show Higher Yields Outweigh Outweigh Cattle Spraying Costs An Increase of ot per head more than covers the cost coat of at spraying beef cattle with DDT it was revealed re reo revealed re- re in a test of the value of fly control conducted at the University of Illinois college of agriculture Protected cattle gained gamed about 1 15 pounds more per head during the pasture season than a group that tha had not been sprayed At 25 cents a pound an increase se of at 15 pounds pound a head amounts to a head a return that far tar outweighs the the- cos cosof cost of spraying Beef Bee cattle should be sprayed often enough to control flies whether it requires two or three sprayings during the season or once a month |