BOARD OF HORTICULTURE 



157 



for the patch to be materially weakened the first seasou, and the second season, 

 or the first expected to yield a füll crop, the patch Is absolutely worthless. Two 

 faetors render this coiidition possible. The soll is often already infested with 

 the grubs, even though strawberries have uot been grown on the ground pre- 

 viously, and again the beetles from older infested beds all al)out tend to concen- 

 trate on the new patch. In the various districts about Portland several types of 

 soll are foiind, various cultural methods are practiced, and every graduation of 

 infestation and injury occur. 



Host Plants 



While we have so far discussed this weevil as a pest of the strawberry, it is 

 by no means confined to this host plant. Both the larvae and the beetles have a 

 Wide and varied list of host plants to their credit and, no doubt but that as our 

 studies continue, the already complex list will be yet further extended. The rasp- 

 berry, blackberry and loganlierry are about all of our cultivated fruits, aside 

 from the strawberry, which seem at all generally attacked in Oregon, and it is 

 not believed that the weevil will prove a serious menace to these hosts. It is very 

 essential, however, that we know the host plant list. and for that reason we will 

 attempt to give it in its entirety as reported up to the present time. 



Host Plant List for Adult Beetles of O. ovatus 



