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recurrence of damage this season* In British Columbia, cutworms, generally 
speaking, v/ere scarcer and less injurious than for many years p.s^t. 
A rather heavy: infestation- of the wheat stem sawfly occurred in souths 
western Manitoba and locally in eastern Alberta, and serious damage by this 
species was anticipated in sections of Saskatchewan. 
"..'hite grubs have been on the increase for several years in sections 
of southern Quebec, and a heavy flight of the beetles is forecast in 1931. 
Severe damage to field and garden crops was reported from southeastern 
Ontario, In British Columbia this pest was about normal. 
The diamond-back moth was prevalent in Saskatchewan and Alberta and 
was extraordinarily abundant and destructive in sections of British Columbia. 
The European corn borer infestation in the Maritime Provinces continues 
very local and light. 
Hornworms were more abundant on tomato and tobacco in southwestern 
'io than 
was unusually 
Ontario than they have been during the past few years. The/cucumber beetle 
nusually destructive in New Brunswick. 
A species of grain aphid caused much damage to late sown Oats in sections 
of eastern Saskatchewan and locally in western Manitoba. Aphids of many 
species were unusually abundant in British Columbia this season, but the 
woolly apple aphid wo.s notably scarce. Reports indicate that in most parts 
of the Dominion fruit aphids were of comparatively minor importance in 
1930. The apple .aphid, however, was noted in outbreak numbers in sections 
of New Brunswick. 
The codling moth was reported as unusually injurious in Ontario o.nd 
the Maritime Provinces. An increase also was noted from southern Vancouver 
Island. Elsewhere in British Columbia the codling moth was notably scarce. 
Eruit injury by the oriental peach moth in southern Ontario is light- 
Red spider mites were conspicuously injurious to small fruits in south- 
western Ontario and southern Manitoba. Grape and apple leaf hoppers increased 
in abundance in southern Ontario. 
A fruit blight, possibly carried by thrips, caused material damage to 
raspberries and loganberries in corstal sections of British Columbia. 
During the past summer in British Columbia, a marked decrease was 
noted in the abundance of several species of injurious fruit insects including 
the oyster-shell sc~le, lesser apple worm, pear slug, peach twig borer, currant 
fruit fly, and the imported currant worm. 
The European beech bark louse has caused the death of many trees on the 
mainland of ITova Scotia, 
