[FLETCHER J 



INJURIOUS INSECTS OF CANADA 



217 



before growth begins in spring is an easy nicaijs of preventing the increase 

 of ihis insect. 



The Pimctured Clover Weevil (Phytonomus pundatus, Fab.). — The 

 first record of the' occurrence of this clover weevil in Canada was in 

 ISSi (Eep. Hon. Ent. Dept. Agr. Can., 1884). It is not, however, a 

 pest which regularly occurs, and in almost every instance when there 

 has been an outbreak it has been attended by a parasitic fungous disease 

 (Entomophthom phijtonomi, Arthiir), which h'as so reduced it that in no 

 case have reports been received of its reappearance the following year. 



In Canada a much more frequent enemy of 

 the clover plant and one which sometimes makes 

 serious but unnoticed diminution in the weight 

 of crops of that important fodder is the 

 native Green Clover Weevil (P. nigrirostris. 

 Fab.), a much smaller insect, the larvae of 

 which eat the young flower heads and bud- 

 ding shoots inside the sheathing stipules of 

 the leaves. With both of these weevils, early 

 cutting of the first crop of clover hay, or feeding 

 it otf with stock, as is done for the clover-seed 

 midge, arc useful. 



The Clover Eoot-borer {Hylesinus trifolii, 

 Millier) is only once recorded as having attracted 

 notice by its injuries in Canada (Eep. Exp. 

 Farms, 1891, p. 200). The remedy most relied 

 on is the ploughing down deeply of an infested 

 crop, and refraining from sowing clover again 

 for some time. Fig.. y._ciover Root-borer. 



Feuits. 



Owing, to the fact that a large amount of capital has been invested 

 in fruit farms and that these plantations are of a more permanent 

 nature than those of any of the ordinary crops which occupy the land 

 for only one or two years or less, more attention has been devoted to 

 the enemies of fruit crops than to other injurious insects. l'Ile conse- 

 quence is that the habits of most of those which trouble the fruit 

 grower are now pretty well understood, and practical standard remedies 

 have been discovered for most of them. One of the most important 

 developments of economic entomology during the past decade has been 

 the introduction into horticulture of what is known distinctively as 

 '•' spraying," — an eft'ective method of distributing arsenical and other 

 poisonous sprays over growing crops by means of specially prepared 



