翻訳と辞書 Words near each other ・ Choristoneura adumbratanus ・ Choristoneura africana ・ Choristoneura albaniana ・ Choristoneura argentifasciata ・ Choristoneura biennis ・ Choristoneura bracatana ・ Choristoneura carnana ・ Choristoneura chapana ・ Choristoneura colyma ・ Choristoneura conflictana ・ Choristoneura diversana ・ Choristoneura evanidana ・ Choristoneura expansiva ・ Choristoneura ferrugininotata ・ Choristoneura fractivittana ・ Choristoneura freemani ・ Choristoneura fumiferana ・ Choristoneura griseicoma ・ Choristoneura hebenstreitella ・ Choristoneura heliaspis ・ Choristoneura improvisana ・ Choristoneura irina ・ Choristoneura jecorana ・ Choristoneura jezoensis ・ Choristoneura lafauryana ・ Choristoneura lambertiana ・ Choristoneura longicellanus ・ Choristoneura luticostana ・ Choristoneura metasequoiacola ・ Choristoneura murinana Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Choristoneura freemani ： ウィキペディア英語版 Choristoneura freemani ''Choristoneura freemani'', the western spruce budworm, is a species of moth of the Tortricidae family. It is the most destructive defoliator of coniferous forests in western North America. ==Distribution== It is now widely distributed throughout the Rocky and Coast Mountains. The first recorded outbreak was in 1909 on the southeastern part of Vancouver Island in British Columbia, Canada. Since that year, infestations have frequently been reported in western Canada.〔Fellin, D. and J. Dewey (March 1992). (Western Spruce Budworm ) Forest Insect & Disease Leaflet 53, U.S. Forest Service. Retrieved on: September 14, 2008.〕 The budworm was first recorded in 1914 in the United States, in Oregon. However, it was not initially recognized as a serious threat to coniferous forests in the western U.S. Aerial spraying apparently terminated some smaller epidemics in the southern and central Rockies; others subsided naturally. The insect then appeared to be dormant in US forests until 1922, when two outbreaks were reported near Priest Lake in northern Idaho. Since then, significant outbreaks in the Rockies and in the Pacific Northwest have caused top-killing and serious economic losses in tree growth. Tree mortality from budworm can occur in regeneration, sapling, and pole-sized trees. Trees in mature stands severely defoliated by the western spruce budworm may become susceptible to bark beetles, which kill mature trees.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Choristoneura freemani」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.