466 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



The Red-necked Cane-borer * 



Sometimes the canes of raspberry and blackberry are found 

 with one or more elongate galls, not over one-third larger in 

 diameter than the normal cane, and usually with numerous slits, 

 which have been called the " gouty gall." The infested shoots 



FIG. 335. The red-necked cane-borer (A(,r'lus ruficollis Fab.): beetle, 

 larva, and gall all much enlarged. (After Riley.) 



may throw out leaves, but they rarely ripen fruit and usually die 

 during the season. By opening the gall it will be found that only 

 the bark has been injured by a spiral channel which girdles the 

 stem and causes the gall-like thickening of the bark. Above 

 the swelling evidence will be found of the borer's work in the 



* Agrittus ruficollis Fab. Family Buprestidce . See J. B. Smith, 12th 

 Report, N. J. Agr. Exp. Sta., p. 373; and F. M. Webster, I.e., p. 191. 



