DIVISION OF ENTOMOLOGY. 



Preliminary Report on Cranberry Insects* 



BY HENRY J. FRANKLIN, B. S., 



Special Assistant in Entomology. 



INTRODUCTION. 



This bulletin is published as a preliminary report on cranberry 

 insects and their control, based on the observations and experiments 

 of a single season on the bogs of Cape Cod. It is prepared to indi- 

 cate briefly the methods which now promise to be most effective for 

 controlling the more important cranberry insects, and all full details 

 of the life histories, habits and descriptions of the insects are inten- 

 tionally reserved for a later publication following more extended 

 studies, both on the bog and in the laboratory, which are now being 

 arranged for. 



This work has been carefully followed by Profs. C. H. and H. T, 

 Fernald, who have aided in planning the experiments and in reach- 

 ins: conclusions from their results. 



THE CRANBERRY FRUIT WORM. 



Mineola vacciiiii (Riley). 



This, the worst insect pest of the cranberry in Massachusetts, also 

 known as the berry worm, is familiar in its injurious stages to every 

 grower. On account of its peculiar life history it is difficult to con- 



