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Note on the Leaf Miner Lithocolletis malimalifoliella Braun (Lepidoptera: Gracillariidae) as an Apple Pest in Quebec1
Published online by Cambridge University Press: 31 May 2012
Extract
In 1953, 1954, and 1955 a species of leaf miner heavily infested leaves of apple trees in an orchard at Farnham, Que., causing severe damage to the crop. The pest was present on all apple varieties but was particularly abundant on Cortland. This infestation is apparently the first known to cause serious injury in Quebec.
Specimens were determined by Dr. T. N. Freeman, Entomology Division, Ottawa, as of Lithocolletis malimalifoliella Braun. This pest has not been previously reported from the Province of Quebec. It has been reported as a persistent and sometimes serious pest of apple in the Annapolis Valley, N.S. (Cameron and Patterson, 1941; Patterson and Neary, 1943), but does not appear to have been reported elsewhere in Canada. Under Quebec conditions L. malimalifoliella has two complete generations and a partial third per year and overwinters in the pupal stage. A survey revealed the pest to be present in all major apple-growing areas of the province.
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- Copyright © Entomological Society of Canada 1956
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