B. C. ENTOMOLOGICAL PROCEEDINGS, 1912. 49 



tvhich will eradicate or kill the weevil, egg, larvae or adult, can be 

 devised, ivhich will not at the same time destroy the plant. 



(7.) Burning the crop is recommended, by application of a straw- 

 mulch on a day when a light wind is blowing.* The ivhole efficiency 

 of this measure depends upon the time it is done. It should be done 

 conjointly with the termination of the first crop. Every day's delay 

 from this time reduces its efficiency, as the egg-laying period begins 

 about June 22nd and continues till about August 22nd. The last crate 

 of berries came off about June 29th this year (1912), and the adult 

 weevils began emerging from the soil in the second week of June, 

 reaching their maximum emergence about July 6th. The point, there- 

 fore, can be readily seen. (See "Period of Oviposition.") 



(8.) Observing the dates given above (7), and noting the large 

 proportion of weevils on the surface of the ground as compared to 

 the number of larvae in the soil, which latter are reducing as the adults 

 are increasing, it is recommended that the field be not ploughed up 

 until at least the end of July or the beginning of August, thereby 

 allowing the plantation to act as a trap crop for the emerging adults 

 to deposit eggs in and preventing in a large measure the new plantation 

 from attack. This course should be followed up by fall ploughing 

 and as frequent cultivation as possible previous to or during winter. 

 (See "Period of Oviposition.") 



(9.) Fall planting is recommended for the Lower Fraser and 

 can be followed with satisfaction. Possibly the same yield from the 

 same area is not obtained as compared with the usual spring planting 

 plan, but from the standpoint of the weevil, we must make some con- 

 cession, and by planting after August 22nd, the benefit is apparent if 

 the land is previously uninfected. (See "Period of Oviposition.") 



(10.) A system of plant renewal is advocated during the middle 

 of the second summer. This is accomplished either by burning or by 

 the removal of the old leaves from the plants in July. An application 

 of some commercial fertilizer — ammonium sulphate, nitrate of soda, 

 or a complete fertilizer — would be found of most benefit to the planta- 

 tion at this time of year. (See "Nature of Injury.") 



(11.) The "one crop plan" of strawberry culture is recommended 

 from the standpoint of the weevil and its nature, but from the stand- 

 point of the local economics of strawberry culture in the Lower Fraser 

 Valley it is not recommended. Those who cannot raise strawberries 



*Care should be taken to see that the straw is not matted, but loosely laid so that there be 

 no fear of concentrating heat at any one point. 



