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The Bionomics of the Aspen Blotch Miner, Lithocolletis salicifoliella Cham. (Lepidoptera: Gracillariidae)1

Published online by Cambridge University Press:  31 May 2012

J. Lynton Martin
J. Lynton Martin
Affiliation:
Forest Insect Laboratory, Sault Ste. Marie, Ontario
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Extract

The aspen blotch miner, Lithocolletis salicifoliella, Cham., has been abundant on trembling aspen, Populus tremuloides Michx., throughout central Canada for the past few years. The mines of this species are found on the underside of the leaves, and are often abundant enough to cause premature browning of the foliage. This insect first came to the attention of the Forest Insect Survey of Ontario in the vicinity of Lake Nipigon in 1944. By 1950, the infestation covered all but the southern part of Ontario, and was reported in most aspen stands in Manitoba and Saskatchewan. The intensity of the infestation in the northern part of Ontario began to decline by 1952, and in 1954 damage was negligible.

Type
Articles
Information
The Canadian Entomologist , Volume 88 , Issue 4 , April 1956 , pp. 155 - 168
Copyright
Copyright © Entomological Society of Canada 1956

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