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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Paleacrita vernata ： ウィキペディア英語版 Paleacrita vernata The Spring Cankerworm (''Paleacrita vernata'') is a moth of the Geometridae family. It is found in North America from the Atlantic Ocean west to Alberta, Texas and California. The length of the forewings is 11–18 mm for males. The females are wingless. Adult males are on wing from February to late May.〔(Bug Guide )〕 The larvae feed on various deciduous trees and shrubs, but especially ''Acer'', ''Ulmus'', ''Betula'' and ''Prunus'' species.〔(University of Alberta E.H. Strickland Entomological Museum )〕 Oaks (Quercus)are also affected, and many homeowners place sticky bands around trunks of their trees to trap the migrating adults as they climb the tree to lay eggs. The eggs hatch, turning into numerous inchlong worms that can defoliate and kill a tree. The worms often fall from the canopy onto passersby. Usually they are suspended by a line of silk that they can climb back into the tree along, should a spring wind dislodge them from their meal of leaves.Charlotte, NC has a municipal program to control the fall cankerworm which is estimated to infest 73,000 acres. The fall cankerworm (Alsophila pometraria) is an insect native to North America. It is typically found from Georgia to Nova Scotia and west to Texas. It has a four stage life cycle: egg, pupa, larva (caterpillar) and adult.〔()〕 ==Etymology== The specific name is derived from Latin ''vernus'', "spring (attributive)". 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「Paleacrita vernata」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.