168 NEW YORK STATE MUSEUM 



San Jos6 Scale (Country Gentleman, Aug. 28, 1902, C7:711") 

 Remedies for Aspidiotus perniciosus Comst. 



Elm Leaf Beetle [Galerucella luteola Miill.] in New York 

 State (N. Y. State Mus. Bui. 57, Entomology 15, p.1-43, 8pl. 

 [revised edition of Museum bulletin 20, issued Aug. 27]) 



Contents 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 ehn 6 



Distribution 6 



Description 8 



Life history 10 



Number of generations 14 



Habits of beetle and larv'ae 14 



Species of elms attacked 16 



An associated insect 17 



Injuries and characteristics 17 



Description and life history 18 



Means of distribution 18 



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 



Hag Moth Caterpillar (Country Gentleman, Sep. 4, 1902, G7:730=") 

 The food habits and life history ofPhobetron pithecium Abb. & 

 Sm. are given. 



17th Report of the State Entomologist on Injurious and Other 

 Insects of the State of New York (N. Y. State Mus. Bui. 53. 

 1901. [Issued Sep. 12, 1902] p.G99-925, 29fig. Gpl.) 



Contents page 



Introduction 699 



General entomologic features 699 



Office work 700 



Special investigations 701 



Entomologic field station 701 



Publications 072 



