A brand that dates itself to 1833.

Black Flag is an American insecticide brand that dates itself to 1833. The brand’s own website, published today by Spectrum Brands, says a Black Flag product was on sale in that year, and English Wikipedia’s article on the brand gives the same date.

Museum objects document the brand in the mid-twentieth century. The Science History Institute in Philadelphia holds a group of Black Flag containers in its Phil Allegretti Pesticide Collection, photographed for its digital collections in 2018. Each is catalogued with Boyle-Midway Inc. as manufacturer. They include a Black Flag Push-Button Insect Bomb dated circa 1950, a Black Flag Aerosol Insect Killer and a Black Flag Bug Killer bottle, both dated to the 1950s, and a Black Flag House and Garden Insect Spray catalogued as made after 1950 and before 1970. For the 1950s aerosol, the Institute gives the place of manufacture as Jersey City, New Jersey.

The catalogue descriptions are short, but they amount to a record of the brand’s mid-century look. The Institute describes the Aerosol Insect Killer as a can with “red, black, and white text on green, red, and black label with flag graphic.” The Push-Button Insect Bomb has white, green, red and blue lettering on a dark green, black, red and white label “with flag and insect graphic,” and a round red cap. The Bug Killer bottle carries black text on a light green and white label with a flag graphic, under a white screw cap with a sprayer. The House and Garden spray breaks the pattern, with black, green and white lettering on a yellow, white and black label, again showing an insect and a flag.

Across four containers and two decades, then, two things repeat: the flag itself, which turns the brand name into a picture, and a palette built from black, green and red. Those are the elements this guide takes as its starting point.

From Boyle-Midway to Spectrum Brands.

A later chapter of the brand is a trap rather than a spray. English Wikipedia’s article on the Roach Motel describes it as a bait device designed to catch cockroaches, introduced by Black Flag in late 1976 in response to the success of d-CON’s roach trap, and says Black Flag claims May 1976 as its earliest date of use of the name. The article quotes New York magazine in 1979 crediting the product’s “whimsical packaging and an aggressive ad campaign.”

The advertising supplied the tagline. Wikipedia gives the Roach Motel tagline as “Roaches check in, but they don’t check out!” and says Black Flag followed it with a flying-insect trap called the Flyport, sold with the line “Lots of arrivals, but no departures!” Wikipedia’s article on the brand says that a family of traps continues under the Motel name, including a Roach Motel, a Fly Motel and a Yellow Jacket Motel, all sharing the check-in joke.

The next documented owner is Spectrum Brands. English Wikipedia says Spectrum purchased Black Flag in 2011, and the VectorShift deal database, summarising Spectrum’s announcement of 1 November 2011, says Spectrum bought the Black Flag and TAT insecticide brands from The Homax Group, a portfolio company of the private-equity firm Olympus Partners, and placed them in the Home & Garden business of its United Industries unit. Spectrum Brands has owned Black Flag since 2011.

That unit has a long St. Louis history of its own. The International Directory of Company Histories traces United Industries Corporation to 1969 in St. Louis, and records that in 1988 it bought the Hot Shot and Spectracide lines from Chesebrough-Pond’s. Wikipedia’s Spectrum Brands article says Rayovac bought United Industries in January 2005 and renamed itself Spectrum Brands that year, and that the company has been headquartered in Middleton, Wisconsin, since October 2013.

The result is that Black Flag now shares an owner with another household insecticide name. The contact form on the Black Flag website, read in October 2026, lists it among the Home & Garden brands Spectrum serves, alongside Hot Shot, Cutter, Garden Safe, Liquid Fence, Repel and Spectracide, and the site’s footer carries a 2026 Spectrum Brands copyright.

Design and documentation.

Lawn-care and household pest-control brands sit on garden-centre shelves, in hardware aisles and under kitchen sinks, and they reach shoppers through packs more than through advertising. A fertiliser bag, a shaker of garden dust, an aerosol of insect repellent and a card of bait stations all have to name the product, say what it is for and carry required label text, often within a small space and alongside rival packs.

Many of these names have changed hands more than once, passing from the chemical or consumer-goods companies that started them to other groups, so the name on a pack can be older than the company that now owns it. That makes the plain questions behind each name worth asking: who started it, who owns it now, and how its packs and marks have changed over time.

Each guide sets out what independent, dated sources record and what the company says about itself — its founding story, its owners over time and how its packs have looked — and marks plainly what rests only on the company’s own word. Products are described by name and category only.

A name that draws its own picture.

The name is two plain words, and the second is an object. The Science History Institute’s catalogue descriptions show that the mid-century Boyle-Midway packs used exactly that, placing a flag graphic on the Aerosol Insect Killer, the Push-Button Insect Bomb, the Bug Killer bottle and the House and Garden spray alike. On two of them the flag shares the label with an insect graphic, so that the pack carries both the brand and the problem it is sold against.

Colour did the rest of the work. On the containers the Institute describes, the labels run through green, black, red and white, with a round red cap on the Push-Button Insect Bomb and a light green label on the Bug Killer bottle. The House and Garden spray uses yellow instead.

The Roach Motel took a different tone. The 1976 trap borrowed a motel’s name, and its tagline turned the trap into a punchline. New York magazine’s 1979 reference to “whimsical packaging,” as quoted by Wikipedia, records that the humour was in the box as well as the advertising. The Flyport extended the same idea to an airport. In both, the product name sets up the joke and the tagline finishes it.

The brand’s current website, under Spectrum Brands, is organised around the shopper’s problem rather than the product. Its menus sort pests into crawling, flying and stinging, and products into indoor and outdoor, with labels and safety data sheets gathered in a section of their own. Its sister brand Hot Shot, at the same company, keeps a separate website.

For a design guide, Black Flag shows how a brand name that is also a picture can carry a pack for decades, and how a single joke — check in, don’t check out — can give a utilitarian product a personality. Compare it with Raid, S. C. Johnson’s household insecticide, and Hot Shot, its sister brand at Spectrum. For this guide we use flag black, label green and cap red on white with a condensed sans, an unofficial interpretation; no product or logo is reproduced.

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