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THE MORE IMPORTANT ENTOMOLOGICAL FEATURES 
IN CANADA, EOR JULY, 1938 
Dry weather in Manitoba, in July, resulted in increased grasshopper 
activity which necessitated the use of poisoned bait generally throughout 
the southwestern part of the province. Maturing grasshoppers were caus- 
ing some anxiety towards the end of the month, but damage had been compar- 
atively light. In Saskatchewan, rains improved the grasshopper situation, 
but severe damage to the wheat crop by these insects continued in the 
southeast and northwest areas, with scattered trouble elsewhere. In some 
districts the grasshoppers moved from unpoisoned summer fallow, causing 
much defoliation generally, and forcing considerable cutting of the crop 
for feed. By July 19 heavy flights were beginning in the southeast. 
Early in July, grasshoppers were causing minor crop losses in certain 
areas of Alberta. Grasshopper depredations in the interior of British 
Columbia were aggravated by dry weather conditions. 
Light to moderate outbreaks of the armyworm occurred in several 
areas in Ontario, and locally in the Brandon district, Manitoba. 
Say's stinkbug is abundant in southern Alberta in localized areas. 
The infestation is concentrated in the Taber-Barnwell district, and is 
more severe than at any time since observations were commenced in 193&* 
Some losses have occurred along the margins of grain fields. 
There is a general infestation of wheat stem sawfly over large areas 
of Alberta and Saskatchewan. Throughout the greater part of the infested 
area there are good crop prospects which will facilitate oviposition. This 
year there is a tendency for the very severe infestations to occur along 
the field margins. 
The Colorado potato beetle is reported to be unusually abundant 
throughout its range in the Dominion. 
Cucurbits have been severely infested by the striped cucumber beetle 
in southwestern Ontario, and locally elsewhere in Ontario and in Manitoba. 
Eor the first time the species occurred in economic abundance in Saskatch- 
ewan. 
The beet webworm developed in great numbers in the provinces of 
Manitoba, Saskatchewan, and Alberta, and in many districts caused moderate 
to severe losses in garden crops. The activities of the insects were in 
part beneficial, in that they fed upon noxious weeds. 
The imported cabbage worm was reported unusually injurious to early 
cruciferous crops in southwestern Ontario, and very scarce in southern 
Alberta. 
