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The European com borer infestation- in southern Ontario is reported to he 
not quite so heavy as in 1938* 
A serious outbreak of the onion thrips developed throughout certain district 
in southwestern Ontario. 
Flea beetles were injurious to field and garden crops in eastern Canada 
and the Prairie Provinces. 
Slight extensions fire recorded of the distribution of the European spruce 
sawfly in Pontiac County, Quebec, and around Lake Nipissing, Ontario, 
An extension of the spruce budwom outbreak in the Algoma area, Ontario, 
and an increase in numbers of this species in eastern Ontario and western Quebec 
has been reported. The serious outbreak in jack pine, first reported in 1936, 
continues to be severe in northwestern Ontario and southeastern Manitoba, 
A heavy infestation of the satin moth occurred at West Bathurst, New 
Brunswick, showing a considerable spread northward from the nearest previous 
record. Complete defoliation of poplars was observed in a number of localities 
in New Brunswick and Nova Scotia* 
There has been a general subsidence of the forest tent caterpillar out- 
break in eastern Canada, although infestations still persist in the Kipawa area. 
Province of Quebec, and in eastern Ontario, 
Nearly all larch stands from Fernio and Kimberley, to the north end of 
Slocan Lake, British Columbia, and northward 80 miles from the United States 
border, are infested to some extent by tin larch sawfly. In certain concentrated 
areas from 85 to 90 percent of the trees were completely stripped. Throughout 
central New Brunswick the infestations appear to be declining. Defoliation in 
Ontario and Quebec has not been so severe as in 1938. 
The black carpenter ant is proving to be seriously destructive to tele- 
phone and electric power poles in the Winnipeg area, Manitoba. 
Reports indicate that the codling noth is not a serious pest this season 
in well-sprayed orchards in the apple-growing districts of Nova Scotia, Ontario, 
and British Columbia. 
The apple aphid and the rosy apple aphid were numerous and caused damage ir 
the Annapolis Talley, Nova Scotia, especially in Annapolis County, The latter 
species was prevalent in orchards in the Okanagan and Kootenay districts, British 
Columbia, In the earlier part of the season the woolly apple aphid was more 
numerous in the Okanagan area than for' many years, but by mid-August the infesta- 
tions had been largely eliminated by the parsite Aphelinus mali Hald. 
Tussook moth larvae caused damage in unsprayed or poorly sprayed orchards 
in ports of Nova Scotic?„, particularly in the western section of the Annapolis 
Talley, 
