- 492 - 
losscs as hi;'^ as 20 percent were reported. The sav/fly vias also naorc in- 
jurious in Manitoba than for a nunher of years, hut, in general, the infesta- 
tions in this Province were not serious, 
^ay‘s stinhhug caused losses to wheat in the Turin-Taher-Wrenthan area 
of Alhorta, Infestations were nore extensive thoji for any season except per- 
haps 193s* 
The heet wehv/orn, large flights of which occurred throughout the Prairie 
Provinces in June, attacked sugar hoets, garden crops, a:id alfalfa in southern 
Alberta in July, and sone losses were reported in s^Ditc of an extensive control 
progran. Damage also occurred in beet-growing areas of Manitoba, but this 
v;as less severe than in 1940 . 
Du.ring May, the so-called green peach aphid v/a,s recorded for the first 
time in spring colonics on xi/ild plun in llew 3 runs\iiick, Tlic first nynphs were 
fonjid on potcoto pla.nts at Lindsay and St, Stephen, IT, D,, on Juno 16 and I7, 
constituting the earliest record of its novonent to potato. 
At . nid-Aufgust, the Di,i.ropoan corn borer wa,s reported to be appa.rcntly 
less x)rcvalcnt in soxithcrn Ontario than in 1940 , a yea-r of severe outbrealc. 
Sweet corn v;a,s averaging from I5 to 50 percent cob infesta.tion. 
The usual reports of infostaAion and crop damage by the ir.norted axblsgc xortn 
and the Colorado -potato beetle have been received fron various districts in 
Canada. Appanently infestn-tions arc about a,veragc. 
Tile pea aphid wan reported infesting peas in pea.-grox'jing areas in the 
C-anpe, southern Quebec, eantorn and southwestern Ontanio, southern Alberta, 
and locally in Dritish Columbia., Material damage from their attacks wan 
noted only locally in Ontario, and in the Taber— ^annv/cll area, of Alberta, 
In the latter area, in spite of control noasuros, the croxo loss in many cases 
was as high as 50 percent. 
The pea noth has been recorded for the first time on Vp^ncouver Island, 
a.t Saonichton, Dritish Columbia., It is now known to bo csta.blished a.ll over 
the southern coastal area of the Province, 
The swootclovcr weevil occurred widely in Ontario, Ma.nitoba, and eastern 
Sa.ska.tchcwan during Jijne, Dana.gc to sv/ectclover v;an severe locally. 
The codling noth appeared to be equally as abundant a.s in 1940 in orchards 
in the Annapolis Valley, ITova Scotia, with an increase reported in the Dor- 
wick anca. In Ontario, sea.sonal conditions favored am increase of this pest. 
In Dritish Columbia the infcsta.tion threatened to be one of the most serious 
on record for thatProvince, both in the interior and on the coast. 
Twig injury to pea.ch by the- first- a.nd second-brood larvae of the 
oriental fruit moth v/as generally much lighter than last year in southern 
Ontario , 
Tile tarnished lolant bug was destructive to x^cach nursery stock in the 
