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Euproctis Chrysorrhoea) (Phalera Bucephala) (Eriogaster Lanestris) (Orgyia Antiqua) (Yponomeuta Species)

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Euproctis Chrysorrhoea) (Phalera Bucephala) (Eriogaster Lanestris) (Orgyia Antiqua) (Yponomeuta Species) Species commonly confused with oak processionary moth (OPM) Forest Research (Thaumetopoea processionae) Oak processionary moth Lackey moth Brown-tail moth Buff-tip moth Small Eggar moth Vapourer moth Small Ermine moths (Thaumetopoea processionea) (Malacosoma neustria) (Euproctis chrysorrhoea) (Phalera bucephala) (Eriogaster lanestris) (Orgyia antiqua) (Yponomeuta species) Almost exclusively on oak. Can A wide range of broadleaf A wide range of hedgerow trees A wide range of broadleaf Blackthorn and hawthorn. A wide range of broadleaf A wide range of broadleaf be found on other broadleaves trees & shrubs including oak. and in scrub, notably bramble- trees and shrubs including oak. trees and shrubs including oak. trees and shrubs but not on oak. Hosts during very heavy outbreaks only. can utilise oak. April - June April - June Over winter - May July - October May - July May - August May - July Larva * Human health risk! * Human health risk! Irritating/toxic hairs Fabio Stergulc, Università di Udine, Bugwood.org di Udine, Bugwood.org Università Stergulc, Fabio Markus Hagenlocher Irritating/toxic hairs Bugwood.org Quarantine, Institute Of Plant Russian Research Akulov, Evgeny Milan Zubrik, Forest Research Institute - Slovakia, Bugwood.org Milan Zubrik, Research Forest Petr Kapitola, Central Institute for Supervising and Testing in Agriculture, in Agriculture, and Testing Supervising Kapitola, Institute for Central Petr Bugwood.org Fabio Stergulc, Università di Udine, Bugwood.org di Udine, Bugwood.org Università Stergulc, Fabio Up to 45mm. Grey body and Up to 55mm. Distinguishable Up to 45mm. Dark brown and Up to 80mm. Can resemble Up to 45mm. Velvety-black body Up to 40mm. Bluish grey body Up to 25mm. Eight very similar dark head- older larvae have a from OPM by their distinct hairy with white marks down OPM because of abundant fine with red-brown marks bordered with red spots and a row of four UK species. Larvae are hairless, central dark stripe with white line orange and blue longitudinal the side and two characteristic grey hairs but occur later in the with white. Completely covered distinctive pale yellow single creamy white with black either side. Clumps of long white stripes. orangey-red warts at the rear. season. Easily identified by their with fine brown hairs; some quite brown tufts. markings. hairs arise from orange warts distinctly patterned yellow and long. along the length of the larva. black body. Nests/ webbing Nests/ Jan Samanek, Bugwood.org Administration, Phytosanitary M. Kunz Markus Hagenlocher C. Tilbury, Forest Research Forest C. Tilbury, White silken nests on trunks or The larvae feed gregariously in a Larvae feed gregariously Buff-tip moth larva do not Larvae live and feed gregariously Larvae do not produce webbing Larvae produce webbing in branches. Nests darken with age communal web or ‘tent’. These creating a strong silken web or produce webbing material. in silken webs. A rare species material. Can cause noticeable spring and early summer that can and accumulation of shed skins are conspicuous and may exceed ‘tent’. Defoliation is often severe. Larvae cause noticeable and localised across England as defoliation and also damage to be extensive draping over entire and hairs; tennis ball sized or 30cm in length. Defoliation is defoliation. far as N. Yorkshire. Species is of buds and flowers but infestations trees and hedgerows- defoliation much larger. often severe. conservation value. are rarely significant. can be severe. July & August Late July - September July & August May & early August February & March July - September July - August Adults Didier Descouens Jan Samanek, Bugwood.org Administration, Phytosanitary Gyorgy Csoka, Hungary Forest Research Institute, Bugwood.org Csoka, Research Gyorgy Hungary Forest Beentree Beentree Grmanners Louis-Michel Nageleisen, Département de la Santé des Forêts, Bugwood.org Bugwood.org Louis-Michel Nageleisen, Département de la Santé des Forêts, Gyorgy Csoka, Hungary Forest Research Institute, Bugwood.org Csoka, Research Gyorgy Hungary Forest FR(GB-SM)/A1/DEC16/0066 Wingspans 30-32mm 30-40mm 37-42mm 55-68mm 36-47mm ♂ 35-38mm ♀ wingless 15-15 mm © Crown Copyright 2016 The Research Agency of the Forestry Commission.
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