ECONOMIC ENTOMOLOGY 



FOR THE 



FARMER AND FRUIT-GROWER, AND 

 FOR USE AS A TEXT-BOOK IN 

 AGRICULTURAL SCHOOLS 

 AND COLLEGES 



JOHN B. SMITH, Sc.D. 



Professor of Entomology m Rutgers College ; Entomologist to the New Jersey Agricultural 

 College Experiment Station and the New Jersey State Board of Agriculture ; 

 President of the Association of Economic Entomologists of the Brooklyn 

 Entomological Society, and of the New Jersey State Microscopical 

 Society; Fellow of the American Association for the 

 Advancement of Science, etc., etc. 



ILLUSTRATED 



PHILADELPHIA 



J. B. LIPPINCOTT COMPANY 

 1896 



