SPRING MANUAL OF PRACTICE IN 

 ECONOMIC ZOOLOGY. 



WHAT TO DO IN SPRING AGAINST THE MORE IMPORTANT INSECT 

 PESTS OF THE FARM, ORCHARD AND GARDEN. 



OHIO 



Agricultural Experiment 

 Station. 



WOOSTER, OHIO, U. S. A., NOVEMBER, 1908. 



BULLETIN 198 



The BulUlins of this Station ate sent free to all residents of the State 

 who reauest them. Persons who desire their addresses changed should 

 giveboth oldandnew address. All correspondence should be addressed to 

 ^ EXPERIMENT STATION, Wooster, Ohio. 



