...A general term for insects that directly harm humans and livestock, or damage crops and their products, and is also the opposite of beneficial insects. Insects are often not clearly distinguished as pests or beneficial, and are not even born as harmful or beneficial, but rather refer to interests that are centered on humans. For example, the feeding habits of some insects are different between adult and larval stages, so even if the larvae of some insects are pests, such as butterflies, the adults may not be considered pests because they serve as pollinators or are aesthetically pleasing. *Some of the terminology that refers to "pest infestation alerts" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…人畜などに直接的に害を与えたり,農作物やその生産物などに損傷加害をする昆虫の総称で,益虫に対することばでもある。昆虫を害虫か益虫かと明確には区別できないことが多く,まして生まれながらに害・益虫の別があるわけではなく,あくまで人間を中心とした利害関係をいうのである。例えば昆虫の成虫と幼虫では食性が異なるものもあるため,チョウなどのように幼虫は害虫であっても,成虫は花粉媒介をしたり美観を呈するので害虫とはされないことがある。… ※「害虫発生警報」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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