BULLETIN 304 



Published monthly by the 



University of the State of New York 



DECEMBER 1903 



New York State Museum 



Frederick J. H. Mkrrii.Iv Director 

 Ephraim Porter Felt State Entomologist 



Bulletin 72 



ENTOMOLOGY 19 



GRAPEVINE ROOT WORM 



KPHRAIM PORTER FELT D.Sc. 



PAGE 



Preface 3 



Introduction 5 



Area infested 6 



Signs of insect's presence 6 



A native species 7 



Allies 8 



Present conditions in Ohio 9 



Early history 11 



Description 13 



Life history 15 



Habits of the beetle 15 



Hggs 



Habits of the grubs or larvae . . . 



Pupa 



Experimental work in 1903 



Record of cage experiments. . . . 



Insects taken by beetle catcher. 

 Food plants 



19 

 23 

 25 

 26 

 27 

 29 

 30 



PAGE 



Varieties affected 30 



Grapeberry moth 31 



Natural enemies 32 



Remedial measures 33 



Destroying the pupae 33 



Collecting beetles 34 



Arsenical poisons 39 



Destruction of eggs 44 



Pulverizing the soil and mounding 45 



Carbon bisulfid 45 



Kerosene emulsion 46 



Crude petroleum ^ 46 



Calcium carbid 46 



Recommendations 47 



Bibliography 47 



Explanation of plates 50 



Index 53 



Plates 1-6 ; fnce 52 



