Title: BIOLOGY OF <i>ANCYLIS DISCIGERANA</i> (LEPIDOPTERA: TORTRICIDAE)
Abstract: Abstract Ancylis discigerana (Walker) is a univoltine leaf folder of yellow birch. Final instar larvae overwinter in litter and pupate from mid-April through mid-May. Adults emerge in early June and deposit single eggs on the upper surface of a leaf, usually on a major leaf vein or other small depression in the epidermis. The first two instars skeletonize the lower surface of a leaf, beneath a sheet of silk that is constructed between two lateral veins. Third-instar larvae move to the upper surface of a different leaf and fold it lengthwise. Larvae feed on the upper epidermis within the fold until leaf-fall. Life stages are described. An egg parasitoid, Trichogramma minutum Riley, and a larval parasitoid, Apanteles polychrosidis Viereck, were the major natural enemies in the population studied. A key is presented for three species of Ancylis found on yellow birch.
Publication Year: 1981
Publication Date: 1981-04-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 2
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