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Forest Insect and Disease Survey; Ontario, 1965 - NFIS

Forest Insect and Disease Survey; Ontario, 1965 - NFIS

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B 15<br />

TABLE 8 (continued)<br />

Organism<br />

Stereum sp.<br />

Tubercularia sp.<br />

Tubercularia vulgaris<br />

Tode ex Fr.<br />

Uncinula salicis (Fr.) Wint.<br />

White Fine Needle Blight<br />

Host<br />

Che, WI<br />

siM, Mu<br />

I, sM<br />

tA<br />

wP<br />

Light on chestnut coppice <strong>and</strong> on<br />

dead witch-hazel at St. Williams<br />

Nursery <strong>and</strong> near Gr<strong>and</strong> Bend<br />

respectively.<br />

Associated with branch mortality<br />

at points in Lake Simcoe <strong>and</strong> Lake<br />

Huron districts.<br />

Cankering observed in Wood <strong>and</strong><br />

Bosanquet twps,<br />

Moderate <strong>and</strong> heavy infections on<br />

lower foliage at several locations<br />

in the Lake Simcoe District.<br />

The incidence of this physiogenic<br />

disease was high on sporadic trees<br />

in the region.

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