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flower-garden plants, native fruit trees, and weeds, and is of some economic 
importance. It was also general in Manitoba and some areas of Alberta. 
In Alberta, Saskatchewan, and the Okanagan Valley, British Columbia, 
butterflies of the imported cabbage worm were reported exceptionally numerous, 
and larval infestation on curciferous crops was general. They were also 
locally reported remarkably abundant in eastern Ontario. 
Blister beetles of several species were abundant and widely distributed in 
sections of the Prairie Provinces. Caragana and various garden crops were 
attacked. 
Insect pests of fruit were generally well under control in the fruit-grow- 
ing sections of the Dominion. 
Hot, dry conditions of southern Ontario favoured codling moth development 
and resulted in an unusually large amount of side-worm injury. The gray-banded 
leaf roller took some toll in the Annapolis Valley, Nova Scotia. 
Local outbreaks of the apple aphid occurred in southern Ontario, and in 
parts of the Saint John River Valley, New Brunswick. This species and the 
cherry aphid were troublesome in the Okanagan Valley, British Columbia. 
Fruit-injury records taken in the Niagara district, Ontario, indicated 
that the oriental fruit moth infestation was similar to that of 1932. The 
fruit moth infestation was reduced to some extent by hot, dry weather in June 
and July. 
An increase in the numbers of the Hhiropean spruce sawfly, Dip r ion 
nol.ytomun Hartig. , occurred this year on spruce in the Gaspe Peninsula, Quebec. 
This species first rose to prominence as a pest in this area in 1931. The heavy 
attack has extended along the north shore of the St. Lawrence, and along the 
Matapedia Valley. A severe infestation of the yellow-headed spruce sawfly on 
plantations and ornamental groups of white spruce developed over a wide area 
in Saskatchewan. 
Outbreaks of the eastern spruce beetle on Cape Breton Island, injurious 
to white and red spruce during the past five years, appear to have died out. 
This species is also distinctly less abundant in the Gaspe Peninsula where it 
has caused heavy damage in recent years. 
There was a general and fairly heavy attack of the birch skeletonizer in 
the Maritime Provinces and the Gaspe Peninsula, but the species was less numer- 
ous than in 1932. 
The satin moth infestation in New Brunswick has suread and increased in the 
districts of Sussex, Moncton, Sackville, and Amherst. It was first found in 
this Province in 1930. 
The majority of walnut trees in southwestern Ontario were partially or 
wholly defoliated by the walnut caterpillar. 
An outbreak of the spruce budworm active in the Barkerville district, 
British Columbia, during the past ten yeans, has subsided because of adverse 
weather conditions and the elimination of much of the food supply by the western 
balsam bark beetle. 
