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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 Rhynchophorus cruentatus ： ウィキペディア英語版 Rhynchophorus cruentatus The palmetto weevil (''Rhynchophorus cruentatus'') is an insect native to Florida, but has been found as far as southern Texas to the west and South Carolina to the north.〔〔http://www.treehelp.com/trees/palm/trees-insects-palmetto-weevil.asp〕 It is the largest weevil in North America and the only kind of palm weevil in the continental United States.〔http://entomology.ifas.ufl.edu/creatures/orn/palmetto_weevil.htm〕 It infests palms and is considered a pest.〔〔 Its main target is the Canary Island date palm, but date palms (a different species than the Canary Island date palm), sabal palms (the palmetto weevil's traditional target), saw palmetto (the palmetto weevil's traditional alternative target), ''Washingtonia'', ''Pritchardia'', royal palms, ''Latania'', coconut palms, ''Caryota'', and ''Bismarckia'' are also susceptible.〔〔〔http://shadetreeexpert.com/Palm%20Insects.html〕〔http://www.youtube.com/watch?v=jTjFmXXRlGg〕 Distressed palm trees are usually attacked, which makes transplanted trees a frequent target.〔 The Palmetto Weevils mate at the base of the palm branches where the females deposit their eggs.〔 The grubs then eat into the palm tree, killing it.〔 After the larvae have turned into adult weevils, the damage can be seen, but by then, it is considered to be too late for the tree.〔〔 The life cycle from egg to adult for a palmetto weevil is about 84 days.〔Weissling TJ, Giblin-Davis RM. (1994). Fecundity and fertility of Rhynchophorus cruentatus (Coleoptera: Curculionidae). Florida Entomologist 77〕 For prevention, it is recommended an appropriate insecticidal crown drench is done twice a year for high value palms.〔 Palm weevil grubs are considered a delicacy in countries outside the United States.〔 Palmetto weevil are most active in late spring and early summer.〔 ==References== 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「Rhynchophorus cruentatus」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.