... In the absence of natural enemies or rival species, naturalized animals can multiply explosively and cause serious damage to crops. One example is the Japanese beetle, also known as the Japanese beetle, which is said to have been introduced to the United States on seedlings from Japan around 1916 and caused no significant damage in Japan, but spread throughout the eastern United States and became a serious pest of apples, peaches, and other fruit trees, as well as beans and other crops. The Iseria scale insect, which was introduced to Japan, also caused great damage to fruit trees and other crops, but its spread could be prevented by introducing the Bedalia ladybug, a natural enemy of its native habitat. ... From [Bean Beetle (Golden Beans)]...They lay eggs in the soil in the summer, and the hatched larvae feed on plant roots and grow, pupating in the soil in early summer the following year. In cold regions such as Hokkaido, they spend the second winter as larvae. It was first discovered in New Jersey, USA in 1916, but has since spread throughout the country, causing great damage and is feared as the Japanese beetle. It is believed that the larvae entered the soil around the roots of Japanese irises imported from Japan. ... *Some of the terminology that refers to "Japanese beetle" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 帰化動物は,天敵や抗争種がいない場合,爆発的に増えて,農作物などにひどい害を与えることがある。アメリカ合衆国に1916年ころ苗について日本から入ったといわれ,Japanese beetleの名で知られるマメコガネが,日本では特別顕著な害がなかったのに,アメリカでは東部にまんえんし,リンゴ,モモなどの果樹をはじめ,マメ類その他の作物の重要な害虫になったのは,その一例である。日本に入ったイセリアカイガラムシも果樹その他に大害を及ぼしたが,原産地の天敵ベダリアテントウを導入することによって,まんえんを防ぐことができた。… 【マメコガネ(豆黄金)】より…夏ころ土中へ産卵,孵化(ふか)した幼虫は植物の根を食べて成育,翌年の初夏のころ土中で蛹化(ようか)するが,北海道などの寒い地方では2年目の冬を幼虫で過ごす。1916年,アメリカのニュージャージー州で最初に発見されたが,その後,アメリカ全土に広がり大被害を与え,Japanese beetleの名で恐れられている。日本から輸入したハナショウブの根のまわりの土に幼虫が混じって侵入したとみられている。… ※「Japanese beetle」について言及している用語解説の一部を掲載しています。 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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