Fly Paper: How It Works, Where to Hang It & Best Brands

Fly Paper: The Time-Tested Fly Catcher

Feature	Fly Paper	Similar problem	Best next step
Main clue	Look for the traits described in this guide, then confirm with direct evidence.	Compare size, behavior, location, and damage before choosing treatment.	Match your control method to the pest you can verify.
Common mistake	Acting on one sign alone.	Assuming the same tools work equally well for both.	Inspect droppings, entry points, and activity areas together.
Control impact	Requires the method, placement, and follow-up timing that fit Fly Paper.	Requires the method, placement, and follow-up timing that fit Similar problem.	Recheck results after several nights and adjust if signs continue.

Fly paper has been catching flies since the 1880s, and despite all the high-tech pest control innovations since then, these simple sticky strips remain one of the most cost-effective and reliable tools for reducing indoor fly populations. No electricity, no chemicals, no maintenance. Just hang it up and let it work.

How Fly Paper Works

Fly paper is a strip of paper or thin plastic coated with a thick, extremely sticky adhesive. The adhesive is typically a mixture of plant-derived resins (like rosin) combined with a non-drying oil or wax to keep it tacky. Some formulations include mild attractants such as sugar or pheromones, but the primary capture mechanism is simply the stickiness.

When a fly lands on the paper, its feet become stuck. As it struggles, more of its body contacts the adhesive, and it cannot pull free. The fly eventually dies from exhaustion or dehydration.

Types of Fly Paper

Hanging Ribbons

The classic spiral or straight ribbon that hangs from the ceiling. These are the most common and least expensive option. They are typically 2 to 3 feet long and catch flies along their entire length.

Best for: Garages, workshops, porches, barns, and utility areas where appearance is not a priority.

Window Traps

Flat, clear adhesive strips designed to be placed directly on window glass. Since many fly species are attracted to light and congregate at windows, these traps are strategically effective.

Best for: Cluster flies and house flies at windows, particularly effective in attics and sunrooms.

Decorative Traps

Modern fly paper products designed to be less conspicuous, including traps shaped like flowers, fruit, or geometric patterns. Some are scented to double as air fresheners.

Best for: Kitchens, dining areas, and living spaces where traditional fly paper would be unappealing.

Optimal Placement

Where you hang fly paper matters significantly:

1. Near entry points: Hang strips near doors and windows where flies enter your home
2. Near food sources: Place traps near garbage cans, fruit bowls, and pet feeding areas
3. At fly height: Most flies fly at 4 to 6 feet, so position strips at this height
4. In flight paths: Observe where flies tend to buzz and intercept those routes
5. Away from drafts: Strong air currents keep flies from landing on the paper
6. Away from foot traffic: Avoid areas where people might walk into the sticky strips

Placement Mistakes to Avoid

• Do not hang fly paper directly over food preparation surfaces
• Avoid placing it where children or pets can reach it
• Do not position it in direct sunlight, which can dry out the adhesive faster
• Do not hang it near fans or air conditioning vents

Effectiveness by Fly Species

Fly paper works best against species that spend significant time flying indoors:

• House flies: Highly effective. House flies actively explore indoor spaces and frequently contact hanging strips.
• Fruit flies: Moderately effective. Yellow sticky traps work better than traditional ribbons for fruit flies. Vinegar traps are generally more effective.
• Cluster flies: Effective, especially window traps. Cluster flies are slow-moving and easy to catch.
• Drain flies: Less effective. Drain flies tend to rest on walls rather than fly actively.
• Blow flies: Moderately effective. Larger species may pull free from lower-quality adhesives.

Advantages and Limitations

Advantages

• Extremely inexpensive (often less than a dollar per strip)
• No electricity or batteries required
• Non-toxic and chemical-free
• Work 24 hours a day
• No maintenance required
• Easy to monitor results by counting trapped flies

Limitations

• Unsightly, especially when covered with flies
• Limited capacity; need replacement when full or when adhesive dries
• Can catch hair, fingers, and non-target items
• Not suitable for all environments (restaurants, formal dining areas)
• Does not address the breeding source

Safety Considerations

Modern fly paper adhesives are generally non-toxic. However:

• If fly paper sticks to skin or hair, remove it with cooking oil or mineral oil, which dissolves the adhesive
• Keep away from children who might play with it
• Dispose of used fly paper in a sealed plastic bag
• Some older or imported fly paper products may contain insecticides, so check labels

Using Fly Paper as Part of an Integrated Approach

Fly paper is most effective when combined with other control methods. Use it alongside:

• Sanitation and food storage improvements
• Fly screens on doors and windows
• Natural repellents at entry points
• Source elimination for the specific fly species you are dealing with

For a comparison of all trap types, see our comprehensive fly trap guide. For complete fly management strategies, visit the complete guide to flies.

Professional Insight

Fly paper may seem like an outdated technology, but in my 15 years of IPM practice, I still recommend it regularly. It is the most cost-effective fly monitoring tool available, and it gives clients an immediate visual indicator of fly activity levels that helps me assess whether our management program is working. I use window-mounted adhesive traps in nearly every cluster fly case I handle, and hanging ribbons remain my go-to recommendation for garages and workshops where aesthetics are not a priority.

Sources and References

• University of Florida Entomology - Fly Trapping Methods - UF research comparing the effectiveness of various passive fly capture methods including adhesive traps.
• EPA - Non-Toxic Pest Control Methods - EPA guidance on non-chemical pest management approaches for residential settings.
• NPMA - Mechanical Fly Control - National Pest Management Association resources on mechanical fly control tools and their proper use.
• Penn State Extension - Passive Fly Control - Penn State's assessment of passive fly trapping methods as components of integrated management programs.

Main Causes

Fly paper addresses the adult stage of an infestation rather than the root cause, so understanding why flies are present shapes how you deploy it. House flies breed in animal waste, garbage, and decaying organic matter. Fruit flies establish in fermenting produce, drain residue, and alcohol spills. Cluster flies enter structures in late summer seeking overwintering sites. Blow flies appear indoors when a dead animal is present in a wall void, attic space, or crawlspace.

Common household conditions that sustain fly pressure include uncovered garbage cans, exposed pet food, overripe produce on countertops, slow drains with organic buildup, and structural gaps around doors and windows. Fly paper does not eliminate any of these sources but reduces the adult population while you identify and address them.

Solutions and Actions

Deploy fly paper as a monitoring and knockdown tool alongside source elimination. Hang ribbons near confirmed fly activity, not randomly throughout the house. For house flies, position strips at fly height (4--6 feet) between the entry point and the primary attractant such as the garbage can or fruit bowl. For cluster flies, use flat window adhesive strips on south- and west-facing windows where adults congregate on sunny winter days.

Replace strips before they reach capacity; fully loaded strips lose effectiveness as available adhesive surface decreases. In commercial or agricultural settings with high fly pressure, track weekly catch counts to assess whether the infestation is increasing, stable, or declining in response to your management program.

How to Identify

Identify the species before treating, because effective control depends on locating the correct breeding site. House flies are gray with four dark thoracic stripes and feed on garbage and feces. Fruit flies are tiny, tan or yellow with red eyes, and breed in fermenting produce or drain biofilm. Drain flies are fuzzy, moth-like, and emerge in small slow flights from drains. Blow flies are large and metallic blue or green and indicate a dead animal nearby. Phorid flies hover in jerky paths and breed in broken sewer lines under slabs. Cluster flies are slow and dark and overwinter in attics. Sticky cards placed near suspected sources for 24 to 48 hours both confirm the species and pinpoint the breeding zone.

Risk and Severity

Flies are mechanical disease vectors, picking up pathogens from feces, decomposing material, and garbage on their bodies and depositing them on food and surfaces. House flies in particular regurgitate digestive fluids when feeding, contaminating any surface they land on. Documented transmissible pathogens include Salmonella, E. coli, Shigella, and Campylobacter. Blow flies in homes signal a dead animal in or near the structure — a secondary health concern from decomposition gases and additional pest activity around the carcass. Biting flies (horse flies, stable flies, black flies) deliver painful bites and can trigger allergic reactions; in some regions they transmit parasites or bacterial infections. Children, elderly, and immunocompromised individuals face elevated risk.

Prevention

Prevention combines source elimination with exclusion. Keep all kitchen garbage in sealed bins and empty daily during warm months. Refrigerate ripening produce, rinse all recyclables before storing, and run garbage disposals briefly each day. Clean drains weekly with enzymatic drain cleaner during fly season, and brush drain walls with a flexible drain brush quarterly to remove biofilm. Remove pet waste from the yard daily. Manage compost with a proper carbon-to-nitrogen ratio and bury food scraps under brown material. Install and maintain tight-fitting window and door screens, repair tears promptly, and add door sweeps to exterior doors. Inspect the structure annually for dead-animal indicators (sudden blow fly activity) and resolve any wildlife exclusion issues that could lead to carcasses in wall voids.

Frequently Asked Questions

How long does fly paper last before it needs to be replaced?

Fly paper effectiveness depends on environmental conditions. In typical indoor environments, the adhesive remains tacky for two to four weeks. High temperatures, direct sunlight, and dust can dry out the adhesive faster. Replace fly paper when it becomes covered with flies, when the adhesive feels dry to a gentle touch, or approximately every two to three weeks for optimal performance.

Is fly paper toxic to pets or children?

Modern fly paper adhesives are generally non-toxic. The sticky coating is typically made from plant-derived resins and non-drying oils. If fly paper sticks to skin or hair, remove it with cooking oil or mineral oil, which dissolves the adhesive. While the adhesive itself is not dangerous, keep fly paper out of reach of children who might play with it and pets who might become tangled in hanging strips.

Where is the best place to hang fly paper?

Hang fly paper near entry points like doors and windows, near food sources like garbage cans and fruit bowls, and at fly height, which is typically four to six feet for most species. Position strips in flight paths where you observe flies traveling. Avoid areas with strong drafts, direct sunlight, and heavy foot traffic where people might walk into the sticky surface.

Can fly paper help identify where flies are traveling?

Use this clue as a prompt to recheck the source, not as a standalone diagnosis. For Fly Paper, compare where the flies appear, what food or moisture is nearby, and whether activity repeats after cleaning. If the same pattern returns within a few days, focus on the breeding site or entry route before adding more sprays, traps, or repellents.