-i6o- 
foliage injury was done to a variety of deciduous trees and shrubs. In sandy 
and sandy-loan sections of eastern Ontario white grubs are abundant and 
causing damage to timothy sod. 
Heavy infestations of the red turnip beetle have occurred on cruciferous 
garden plants and weeds in Saskatchewan, west and northwest of Saskatoon, to 
the Alberta boundary. 
For the first time since 1923. material damage to wheat by the western 
chinch bug was reported in the locality of Madison, in western Saskatchewan. 
The infestation may be more widespread than indicated by this report. 
Crop damage by flea beetles of various species is reported to be 
widespread in the Dominion. 
Large flights of the beet webworm occurred in the three Prairie Provinces, 
and damage to sugar beets by the larvae is threatened in beet-growing areas. 
Injury by the cabbage maggot was reported severe in southwestern 
Ontario and in the Okanagan Valley, British Columbia. 
Orchard insects are generally well under control in the Annapolis 
Valley, Nova Scotia, but the rosy apple aphid has appeared in injurious, numbers 
in many districts. The green apple bug is also more prevalent than for several 
years past. 
The strawberry weevil was abundant and injurious to strawberries in 
parts of the Annapolis Valley, Nova Scotia, and on Prince Edward Island. 
In the Niagara district, Ontario, weather conditions so far have been 
unfavorable to the development of the codling moth and oriental fruit moth. 
Grape leafhoppers are again present in injurious numbers in this district. 
Overwintering tarnished plant bugs have caused serious damage in many 
apple orchards of the Vernon district, British Columbia, by destroying the 
buds . 
Trees and shrubs in many parts of the Dominion again suffered foliage 
injury from the attacks of tent caterpillars. The eastern tent caterpillar 
caused defoliation of neglected orchards in sections of eastern Canada. A 
major outbreak of the forest tent caterpillar developed in Ontario over a wide 
region north of the Georgian Bay and Lake Superior. Deciduous trees and shrubs 
were defoliated, houses and gardens were invaded, and trains were delayed during 
the course of the outbreak, which occasioned much newspaper publicity and con- 
siderable public concern. Tent caterpillars wore also reported to be unusually 
numerous in British Columbia. 
An extensive outbreak of the jackpinc sawfly, apparently Diprion swainei 
Middleton, is in progress in the Abitibi Lake region of Ontario. A European 
species, D. frutetorum Fab., found attacking pine in the Niagara district in 
193^i shows no further spread and is being brought under control in some areas 
by imported parasites. 
