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Extcr.sive outbreaks of blister beetles of several species again 
occurred in the Prairie Provinces. The abundance of these insects is 
reported to be associated with repeated outbreaks of grasshoppers, on 
the egg pods of which the larvae feed. 
The Colorado potato beetle appears to be more abundant and in- 
jurious than usual in Ontario and part's of Quebec. A marked reduction 
over previous years is noted in Manitoba. 
Heavy infestations of flea beetles of several species were reported 
on field and garden crops in various parts of' Eastern 'Canada and in 
Manitoba. 
Important damage by the cabbage maggot was reported in Ontario and 
on Prince Edward Island. In the latter Province and in eastern Ontario 
the onion maggot is also causing notable 'Injury. 
Extensive flights of the diamondback moth occurred in southern 
Alberta and Saskatchewan in spring, and the larvae have caused rather 
severe damage to cruciferous crops. 
The first brood, of codling moth was heavy in southern Ontario, 
as a result of the large carry-over from 1936. There were no serious 
worm infestations, however, in well-sprayed orchards. 
The infestation of oriental - fruit moth continues very low in 
peach orchards of southern Ontario. 
The apple aphid and the black cherry aphid are troublesome in 
orchards of the Okanagan Valley, British Columbia. 
An infestation of the spruce bud worm is present over a large 
territory in Manitoba and Ontario. It apparently extends from the 
SandiLands Forest Reserve, Manitoba, to the Eagle River, Ontario, and 
appears to bo spreading eastward. 
The spruce mite, which has long been a serious pest of planted 
spruce in the Prairie Provinces, has this year assumed outbreak pro- 
portions, and reports indicate that defoliation is proceeding rapidly. 
An extensive and , injurious infestation of the yellow-headed spruce 
sawfly has developed in northern and central Manitoba, .Saskatchewan, and 
Alberta. 
