A fly-killing device is used for pest control. A fly-killing device typically attracts flying insects, for example houseflies, wasps, moths and mosquitoes. The insects are killed or released.
Famous quotes containing the word device:
“It is my hope to be able to prove that television is the greatest step forward we have yet made in the preservation of humanity. It will make of this Earth the paradise we have all envisioned, but have never seen.”
—Joseph O’Donnell. Clifford Sanforth. Professor James Houghland, Murder by Television, just before he demonstrates his new television device (1935)