STRAWBERRY INSECTS 389 



to fully harden and thon escape. At the approach of winter 

 they go into hibernation in the soil. There is but one brood a 

 year. 



Treatment. 



By adopting the one-crop system of strawberry culture and 

 by placing new beds at some distance from infested fields, the 

 injury caused by the crown-borer may be largely prevented. 

 The beetles are unable to fly, and their spread from one field to 

 another is consequently slow. If the new plants are dug in the 

 spring before the eggs are laid there is little danger of introduc- 

 ing the pest into new beds unless some of the hibernating beetles 

 are carried over in the soil adhering to the roots. 



References 



Forbes, 12th Rept. St. Ent. TIL, pp. 64-75. 1883. 

 Ind. Agr. Exp. Sta. Bull. 33, pp. 41-43. 1890. 



A closely related species (Tyloderma foveolatum Say), which 

 commonly breeds in the stems of the evening primrose and 

 willow herb, has been reported as a serious pest of the strawberry 

 in British Columbia. The grubs attack the crown like the fore- 

 going species. 



FiEFEKENCE 



Fletcher, Rept. Ent. Bot. for 1897, p. 204. 1898. 



Fuller's Rose Beetle 

 Aramigu.s fuller I Horn 



This well-known and destructive greenhouse" pest, occurs from 

 the Atlantic to the Pacific and has been introduced into the 

 Hawaiian Islands. In California the grubs have caused severe 

 injury to strawberry plants and sometimc^s attack tlu^ roots 

 of blackberries and loganberries. 



The adult is a grayish-brown snout-beeth^ (Fig. 335) with an 



