Flypaper -

At its core, flypaper is a masterpiece of low-tech pest control. No electricity, no poison, no moving parts. Just a surface coated with an extremely persistent, pressure-sensitive adhesive. The original formula often included boiled linseed oil, rosin (tree resin), and a touch of sweetener — sometimes honey or even just a fragrant volatile compound like citronella or geraniol to attract the flies.

Before mass production, people made their own. A common 19th-century recipe: boil water, add sugar and ground black pepper (attractants), then stir in powdered resin and a bit of flour to create a paste. Smear it on yellow paper (flies see yellow as a bright, flower-like signal), and hang it up. Flypaper

The commercial boom came in the 1880s–1920s. Brands like "Tanglefoot" and "Aeroxon" became household names. In the pre-DDT era, flypaper was public health infrastructure. It fought typhoid, dysentery, and cholera — diseases carried by filth flies. A single sticky ribbon could kill hundreds of flies a day. It was ugly, but it worked. At its core, flypaper is a masterpiece of