SB 

 (y2X 



B/ArxRlClILTURAL ENTOM( )I.O(IY 



FOR STUDENTS, FARMERS, FRUIT-GROWERS 

 AND GARDENERS ' 



BY 



HERBERT OSBORN, B.Sc, M.Sc. 



'ROFESSOR OF ZOOLOGY AND ENTOMOLOGY IN THE OHIO STATE UNIVERSITY, 



COLUMBUS, OHIO, AND DIRECTOR OF THE LAKE LABORATORY, 



CEDAR POINT, OHIO. 



ILLUSTRATED WITH 252 ENGRAVINGS AND A COLORED PLATE 



LEA & FEBIGER 



PHILADELPHIA AND NEW YORK 

 1916 



