88 B.C. Entomoi.O(;i('al Siicikty. 



From a large heap of baiHy Infested stumps ou the Experimental Farm at 

 Lethbriilge a constant flight of parasites was observed during April in 1015, while 

 numerous minute aphides were seen crawling over the heap of well-frozen and 

 lifeless stumps. Some of the aphides were hatched in captivity and lived for two 

 or tliree days only. None was seen to attempt to feed upon the over-wintered 

 (■al;lia.i.'i'-tissues. 



'i"lu' foregoing suggestion musi not be considered as an excuse for leaving 

 cabbage-stumps, etc.. lying around in the fields during winter. It is just as essential 

 that all refuse be coUei-ted and placed on a clean piece of land, which must not be 

 allowed lo grow U]) to weeds during April or early May. as it is to collect such refuse 

 for lun-niiig. We wmild repeat, also, that this is ap|>licalile only to those localities 

 in which the winter is always sufflcieutl.v severe to ensure that all refuse U'ft over 

 from cabbage or turnip crops is completely killed. In suc-h localities we would 

 reconnneud that some snrh arrangement be made so that we do not annually kill 

 off a large percentage of our best friends, anil then inade(|uafely replace their role 

 in ]iature with expensive spra\iiig. 



VICTORIA, B.C. : 

 riiiitea by William H. Cullik, I'rinter to tUe King's Most Excellent Miijo 

 3910. 



