THE MONTHLY BULLETIN. 



665 



cent of the stock, such stock will not be reshipped or destroyed on 

 account of crown gall infection until samples have been passed upon 

 by the State Entomologist or Assistant State Entomologist. 



A. W. Morrill, State Entomologist. 

 Phoenix, x\rizona, January 31, 1913. 



THE POTATO TUBER MOTH. 



Suggestions to Potato Growers and Shippers. 



The potato tuber moth is causing much anxiety in the states of 

 Oregon and Washington, where the pest has not yet become estab- 



FiG. 365 — Cross section of potato showing the worlt of the 



potato tuber moth. 



lished. All possible measures are being adopted to prevent further 

 spread of the insect within and without California. In as much as 



