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''Pyrrhalta viburni'' is a species of leaf beetle native to Europe and Asia, commonly known as the viburnum leaf beetle. It was first detected in the United States in Maine in 1994.〔 In England the Royal Horticultural Society has named ''Pyrrhalta viburni'' as the country's "number one pest species". Female beetles burrow into viburnum twigs and create 'spaces' in pith tissue. Then they lay eggs in clusters of covering them with frass. Eggs overwinter in these cavities where they are protected from water loss and being consumed.〔 (【引用サイトリンク】 url = http://www.telegraph.co.uk/gardening/gardeningadvice/11566155/How-to-win-the-battle-against-the-viburnum-beetle.html ) 〕 The spined soldier bug, ''Podisus maculiventris'' is used and developed as a biological control agent against the beetle. ==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「Viburnum leaf beetle」の詳細全文を読む スポンサード リンク
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