?6 



Published monthly by the 



University of the State of New York 





AUGUST 1903 



New York State Museum 



Frederick J. H. Merrill Director / 



Ephraim Porter Felt State Entoftiologist 



BIJRE^tJ OF 



AMERtCm iTHNOUOGY, 



Bulletin 57 

 ENTOMOLOGY 15 



ELM LEAF BEETL^t^ a a » v, 



IN 



NEW YORK STATE 



Edition 2 



EPHRAIM PORTER FELT D.Sc. 



PAGE 



Preface 3 



Elm leaf beetle in New York State. 4 



Bad reputation of its family 4 



Recent injuries about Albany . .. 4 



Inaction means death to the elm . 6 



Distribution 6 



Description 8 



Life history 10 



Number of generations 14 



Habits of beetle and larvae 14 



Species of elms attacked 16 



An associated insect 17 



Injuries and characteristics 17 



Description and life history 18 



Means of distribution. 18 



PAGE 



Secondary attacks by insects 19 



Natural enemies 20 



Remedies 22 



Cost of spraying^ elms 22 



Proper apparatus 23 



Time and manner of spraying-. .. 25 



A palliative measure 27 



Useless measures 28 



Remedies for associated insects. .. 29 



Bibliography 30 



Explanation of plates 37 



Plates 1-8 face 38 



Index 39 



>'\3U11 



ALBANY 



UNIVERSITY OF THE STATE OF NEW YORK 

 1902 



Mel03m-JaL'-15()0 



Price 15 cents 



