327 
THE MOKE IMPORTANT ENTOMOLOGICAL FEATURES III CA1TADA 
FOR JULY AM) AUGUST 1935 
Cool, wet weather in June and heavy rains in early July in Manitoba 
and. Saskatchewan resulted in irregular and retarded hatching and slow de- 
velopment of grasshoppers, and in reduced crop damage. Organized control 
efforts, involving the widespread use of poisoned bait, were continued in 
the infested areas throughout the Western Provinces. In Manitoba the dis- 
sease Empusa rerylli was reported to be causing high mortality among the 
roadside and two-striped grasshoppers, and had appeared in areas in Sas- 
katchewan where rains had been frequent, Crop damage has been comparatively 
light in Manitoba and Saskatchewan, except in the south-central part and 
local areas of the latter Province. Losses were occurring in some sections 
of southern Alberta, where they were accentuated by drought. Winged adults 
were becoming conspicuous in parts of the Prairie Provinces by the end of 
July. ITo extensive migrations have been reported. Egg laying was general 
by mid-August, and in the Red River Valley, Manitoba, adults were abundant 
enough to deposit sufficient eggs to create a menace in 1S3^» Central 
Manitoba was comparatively free of the insects. In British Columbia, grass- 
hoppers were reported to be increasing on the ranges in the Kamloops area, 
and in the Cariboo district. 
The outbreak of the pale western cutworm was fairly widespread in 
Saskatchewan and Alberta, but severe damage occurred in only a few areas. 
The largest area of general and severe infestation was in the Shackle ton- 
Leader-Fox Valley area of Saskatchewan, extending for a short distance into 
Alberta. Severe local infestations also occurred in several areas of the 
drier districts of Alberta, centering on Lethbridge. Heavy rainfall in May 
and June in many areas has eliminated the pale western cutworm as an economic 
pest for 1936. Over a large part of the two Provinces, however, where rain- 
fall was only sufficient to hold the insects in check, damage in 193& m a-y be 
expected to be about the sane as this season. 
The red-backed cutworm also caused crop damage locally in the Prairie 
Provinces. 
Cutworms of several species were exceptionally abundant throughout a 
large part of the cultivated areas of the Provinces of eastern Canada » and 
in many places caused unusually severe damage to various field and garden 
crops. An outbreak of the spotted cutworm in southwestern Ontario resulted 
in the destruction of a, large part of the sweetclover seed crop. 
Second-year white grubs are prevalent in timothy and hoed crops in 
southern Quebec, and have caused destruction locally to sugar beets and 
strawberry plants in southern Ontario. 
As during the last several seasons, blister beetles of several species 
are widespread in the Prairie Provinces, inflicting damage chiefly to legumi- 
nous shrubs and field and garden plants. A reduction in their numbers as 
compared with 193^ bas been recorded in certain areas. 
