An insect of the Lepidoptera family Tortricidae. It is feared as a major pest of fruit, especially apples. Its English name comes from the fact that it attacks unripe apples. The larvae feed on the flesh around the apple seeds and core, and when the apple ripens, they leave the apple to pupate. They may be found in nearby sugar or flour, where they may emerge. In North America, the larvae have been found infesting pears, wild hawthorns, walnuts, and other fruits. They have spread to almost all apple-growing areas around the world, but fortunately have not yet invaded Japan. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
鱗翅目ハマキガ科の昆虫。果実,とくにリンゴの大害虫として恐れられている。英名も熟していないリンゴにつくということによる。幼虫はリンゴの種子や芯の周囲の果肉を食べ,老熟すると蛹化(ようか)するためリンゴから離れる。近くに置いてある砂糖や小麦粉の中で見いだされることがあり,そこで羽化することもある。北アメリカでは,ナシ,野性のサンザシ,クルミなどに幼虫が寄生することが見いだされている。ほとんど世界中のリンゴ栽培地に広がっているが,幸いにも日本にはまだ侵入していない。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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