THE CANADIAN ENTOMOLOGIST 259 



If these suggestions are properly put into force it may reason- 

 ably be expected that little damage would result from the at- 

 tacks of the weevil larva? on the root system. It is urged that dis- 

 tricts liable to infestation, entering upon the industry of straw- 

 berry culture, should adopt these plans before they are forced to 

 do so by the presence of the weevil. 



Experience has shown that it is common to find at times well 

 over a hundred larvae at work on the roots of individual plants, 

 growing on the hill system, and yet the plant would not be dead. 

 A totally unprofitable crop is the result, but the plant itself sur- 

 vives the ordeal. On enquiry it may be found, almost invariably, 

 that the plantation is entering upon its third cropping year. Fre- 

 quently one hears of severe infestation in young plantations, but 

 in such cases it has been found that the land has been made the 

 recipient of continuous crops of strawberries for several years. 

 It is exceptional to find plantations devastated in the first year of 

 growth or virgin soil, although a few instances of this have been re- 

 ported. 



On the Effect of ''Burning Over'' a Strawberry Field as a Means of 

 Controlling the Strawberry Root Weevil. 



During the past summer experiments were conducted on the 

 efficiency of burning over an old strawberry plantation just pre- 

 vious to the termination of the crop. The plants, growing on the 

 hill system, on approximately 1^^ acres, were "mattocked up" 

 and roots, tops and straw-bedding raked into windrows. On 

 about half the field the strawberry rows were raked into one 

 windrow, while on the other half four rows were raked into one row. 

 The plants were left in these rows for about 24 hours, the day 

 being bright and sunny. In this way the plants were allowed to 

 dry, making burning easier, and secondly those beetles left in the 

 old strawberry rows would be forced to shelter in the windrows, 

 during the night, as to a bait. Finally the rows were fired at a 

 convenient point to utilize the prevailing breeze. 



At the time this work was done the great majority of the 



