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THE MORE IMPORTANT ENTOMOLOGICAL FEATURES IN CANADA 
FOR AUGUST And SEPTEMBER 
The light and patchy grasshopper outbreak in southwestern Manitoba 
was greatly aggravated late in July and early in August: by extensive flights 
of grasshoppers fron the southeast, with the result that much head damage 
was done to late crops and prospects of a severe outbreak in 1938 were con- 
siderably increased. In Saskatchewan heavy migrations of grasshoppers in 
southern areas and their concentrations on late crops elsewhere continued to 
reduce feed supplies. Preliminary surveys revealed important infestations 
practically throughout the agricultural area. While these were light in 
many newly infested areas, 'the area of severe outbreak had also spread 
markedly, especially in the northwest. Exceptionally -severe and general 
outbreaks are indicated in the Province for next spring. Severe damage and 
crop loss occurred in. some localities in southern Alberta. Although 1937 
was a peak year for grasshopper abundance in the interior of British Columbia, 
crop losses were small as a result of control efforts. 
Moderate' infestations of the Mormon cricket were reported in several 
localities in 'Manitoba and Alberta. , 
Outbreaks of the arnyworra occurred in parts of eastern Canada and the 
Prairie Provinces: The outbreak in Nova Scotia and Prince Edward Island; was 
the worst in nearly two decades. Moderate- to- light infestations developed in 
New Brunswick and southwestern Ontario. With the exception 1 of the southwestern 
municipalities and a strip eastward along the international boundary as far as 
Manitoba, practically the whole agricultural area of Manitoba suffered heavy 
infestations. Outbreaks of different degrees of severity also occurred in 
Saskatchewan. .-.:.:-.••■ 
Extensive damage to field and garden crops by second-year white grubs 
occurred over a wide area in southern Quebec. 
Considerable loss of wheat from the attacks of the wheat stem sawfly 
was reported in the prairie sections of Saskatchewan wherever crops matured. 
Losses in Alberta this season were more extensive nnd severe than in 193&* 
A gradual resurgence of the hessian fly population is occurring in 
southern Ontario, owing to the practice of early seeding. 
Say's stinkbug is quite abundant in Alberta and occurs over- a wide 
area in this Province and Saskatchewan. The area extends from the inter- 
national boundary, west to Cardston, Alberta, east to East Poplar, Saskatch- 
ewan, nnd north to Calgary,' Alberta, m d Alflask and Ardath, Saskatchewan. 
An outbreak of the beet webworm of probably unprecedented severity and 
