48 B. C. ENTOMOLOGICAL PROCEEDINGS, 1912. 



year with another, the weevil is fairly localized within the area and 

 free to infest the crop which is being grown. Rotation, however, on a 

 large scale is much more effective, because the weevil not only has to 

 travel a greater distance to find the new plantation, but its egg-laying 

 period is per individual comparatively short and the larvae are capable 

 of feeding on the roots of most vegetation on the way. 



Two things are certain that the presence of this weevil is very 

 largely detracting from the profits of the strawberry industry as a 

 whole, and that the injurious nature of this weevil is more particularly 

 noticed on farms of small area, in fact, there need be little hesitation 

 in saying that unless radical steps are taken to prevent the introduc- 

 tion of this weevil into strawberry plantations, or fight it when it is in, 

 on farms of five acres or less, the continuous growing of strawberries 

 will prove wholly unprofitable. 



Suggested Remedial Measures. 



(1.) Varieties of strawberries should be grown which, by reason 

 of their vigorous nature, are more apt to throw the best returns in 

 yield the first spring from planting. Such varieties are recommended 

 previously in the text of this paper for Lower Fraser conditions. (See 

 "Susceptibility of Variety.") 



(2.) Chickens devour the larvae in the soil with readiness. Use 

 should be made of them in a rotation with strawberries. (See "Indi- 

 vidual Adult.") 



(3.) Adult weevils take shelter during the daytime under boards, 

 etc., and thereby can be easily trapped. This method, however, is only 

 practicable by growers on a small scale. (See "Individual Adult.") 



(4.) A plan may yet be evolved which takes advantage of the 

 weevil's inability to fly. It can only crawl, consequently any evil- 

 smelling mixture placed around a field or some sticky mixture placed 

 around a field, may in time be originated. Thus far no method can 

 be advised for immediate adoption. (See "Individual Adult.") 



(5.) Arsenate of lead applied in the form of a spray immediately 

 after the first crop is taken off, may be tried in certain cases when the 

 adult weevils are so numerous as to warrant attention. Under ordinary 

 conditions this method can only be recommended as a minor remedy. 

 (See "Food Habits of Adult.") 



(6.) Cyanide of potassium and carbon bisulphide gas are effec- 

 tive fumigants. The cost of the operation militates against their use. 

 It may be stated here that it is extremely doubtful that any remedy. 



