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Forest Insect and Disease Survey; Ontario, 1965 - NFIS

Forest Insect and Disease Survey; Ontario, 1965 - NFIS

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D 27<br />

TABLE 12 (continued)<br />

<strong>Insect</strong> Host Remarks<br />

Neodiprion swainei Midd.<br />

Nycteola frigidana Wlk.<br />

Nymphalis antiopa Linn. W, tA, E<br />

Operophtera bruceata Hlst. sM, r0 , I<br />

Pikonema dimmockii (Cress.) wS<br />

Phyllocolpa spp. (leaf-folding tA<br />

sawfly)<br />

Pineus similis Gill.<br />

Profenusa thomsoni (Konow)<br />

Schizura concinna J. E. Smith<br />

Sternochaetus lapathi (Linn.)<br />

jP<br />

wB<br />

Pseudexentera cressoniana Clem. r0<br />

Pterocomma populifoliae (Fitch)<br />

tA<br />

Recurvaria thujaella Kft. eC<br />

Rhabdophaga swainei Felt<br />

Rhyacionia adana Heinr.<br />

Rhyacionia frustrana Comst.<br />

Toumeyella numismaticum P. McD.<br />

Trisetacus alborum Keifer<br />

wS, bS<br />

jP, scP<br />

jP<br />

Po, Ch, W, Ap<br />

W<br />

jP<br />

rP, wP<br />

Light infestation persisted on<br />

small isl<strong>and</strong> in Onaping Lake<br />

where average of 6 colonies<br />

per tree counted on 10 trees<br />

averaging 3 inches d.b.h.<br />

Clumps of heavy infestation at<br />

several points.<br />

Scattered colonies at widely<br />

separated points.<br />

Moderate to severe defoliation<br />

on Great Duck Isl<strong>and</strong>.<br />

Small numbers found in beating<br />

map samples.<br />

Medium-to-heavy infestation on<br />

clumps of trembling aspen reproduction<br />

on Manitoulin Isl<strong>and</strong>.<br />

Pockets of light infestation at<br />

many other points.<br />

Severe damage on one tree in<br />

Burpee Twp., scarcely found<br />

elsewhere.<br />

Light leaf mining observed<br />

frequently throughout the<br />

district.<br />

Heavy infestation on scattered<br />

trees in Secord Twp., light in<br />

Struthers Twp.<br />

Heavy infestation on scattered<br />

pockets of reproduction in the<br />

Wanapitei Lake area.<br />

Light leaf mining at scattered<br />

locations.<br />

Infested buds found in small<br />

numbers at numerous points,<br />

counts of damaged buds negative<br />

t sample points.<br />

ght infestation in small scP<br />

plantation in Delamere Twp.,<br />

average of 4.5 infested shoots<br />

per tree counted on 10 trees<br />

averaging 3 ft. in height.<br />

Sharp declines in population<br />

levels, only small numbers<br />

found.<br />

Scattered colonies observed.<br />

Severe damage to scattered<br />

shrubs in McKim <strong>and</strong> Secord<br />

twps.<br />

Single trees heavily infested<br />

in Cascaden <strong>and</strong> Cosby twps.<br />

Occasional trees heavily<br />

infested in Servos Twp.

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