出典:Wikipedia
出典:『Wikipedia』 (2011/06/15 15:56 UTC 版)
An insect repellent is a substance applied to skin, clothing, or other surfaces which discourages insects (and arthropods in general) from landing or climbing on that surface. There are also insect repellent products available based on sound production, particularly ultrasound (inaudibly high frequency sounds). These electronic devices have been shown to have no effect as a mosquito repellent by studies done by the EPA and many universities.
害虫.
a substance used when fumigating
something used to repel mosquitoes
a weeder
insects that belong to trichopteran
to travail―be taken with travail―have labour pains―have the throes of childbirth
to travail―be taken with travail―have labour-pains―suffer pangs of childbirth―have the throes of childbirth
コノハムシ類