Comparison: Best Insecticide For Drain Flies (Updated | Oct 22nd)
When dealing with drain flies, selecting the right insecticide is crucial for effective and lasting control. This comparison explores top options designed to target these pesky pests at their source, emphasizing ingredients, application methods, and environmental safety. Whether you’re tackling an active infestation or seeking preventive solutions, understanding the strengths and limitations of each product can help you make an informed decision. We focus on efficacy, ease of use, and value to guide you toward a cleaner, fly-free home. Always follow label instructions for safe and optimal results.
Editor’s Choice
Best for a specific purpose
-
Best for premium build:
Nibor-D Insecticide Foam with IGR -
Best for best overall:
Green Gobbler Fruit Fly Goodbye Gel Drain Treatment | Killer Flies & Eliminator (1 Gallon) -
Best for best budget:
TERRO Drain Insect Killer – T590 Drain Fly Killer Spray – Foam Treatment for Fruit Flies -
Best for scum buster:
Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats -
Best for septic safe:
Drain Fly Killer Powder – Eliminates Drain Flies -
Best for odor control:
Green Gobbler Fruit Fly Killer+ – Kills Fruit Flies -
Best for natural solution:
Kinzua Environmental Fly-Zyme -
Best for plant-based spray:
STEM Kills Ants -
Best for all-natural gel:
Fruit Fly Drain Treatment | Drain Fly Eliminator | All-Natural -
Best for commercial grade:
Nibor-D Insecticide Foam with IGR
Product Comparison: Best Insecticide For Drain Flies
Premium build
Nibor-D Insecticide Foam with IGR, Ready-to-Use for Fly and Cockroach Control, 360 Degree Application, Includes 17" Hose (1 Pack, 21 oz Can)
Nisus
- DUAL-ACTION FORMULA: Combines borate-based insecticide and insect growth regulator to eliminate on-contact and stop insect development; disrupts life cycles to prevent reproduction and future infestations; ideal for flies, cockroaches, and other common indoor invaders.
- VERSATILE APPLICATION: Targets drains, cracks, crevices, voids, and other hard-to-reach areas; includes a 17-inch detachable hose for precision treatment; ideal for use in kitchens, bathrooms, and commercial spaces; suitable for indoor use only.
- READY-TO-USE FOAM: No mixing or special equipment is required; foam dissolves naturally after application for a quick and hassle-free solution; penetrates deeply into organic buildup and hidden areas to ensure effective treatment.
- EASY 360° APPLICATION: Equipped with a 360° valve for full coverage in any direction; perfect for spraying beneath equipment, into drain pipes, and along baseboards; reduces downtime in commercial and residential environments.
- MULTI-USE AND SAFE: Suitable for homes, restaurants, schools, hospitals, and food service areas; ensure sanitary conditions by treating breeding areas; safe for non-food surfaces when used as directed; effective in various settings like drains, trash chutes, and voids.
Best overall
Green Gobbler Fruit Fly Goodbye Gel Drain Treatment | Killer Flies & Eliminator (1 Gallon)
Green Gobbler
- KILL FRUIT, DRAIN & SEWER FLIES: Get rid of the fly infestation and get back to enjoying your space. Green Gobbler's thick gel formula clings to pipes to eliminate annoying drain fly infestations. It kills fruit flies, drain flies and sewer flies.
- PERFECT FOR HOMES & BUSINESSES: Green Gobbler is perfect for homes, hotels, restaurants, bars and anywhere with a fruit, drain, or sewer fly problem. It can treat garbage disposals, floor drains, kitchen sinks, bathrooms, shower drains and more.
- EASY TO USE: Simply pour 8 ounces into your problem drain. This bottle uses anti-glug technology to help reduce splashing and provides up to 16 drain treatments. For best results, we recommend using product at night or during lowest time of use. Repeat daily until desired results are achieved.
- MADE WITH CITRONELLA & CINNAMON: Our formula contains natural Citronella Oil and Cinnamon Oil to repel flies from your drain.
- GREEN GOBBLER GUARANTEE: Green Gobbler cares about its customers. We take pride in developing innovative & effective products for your home or business. If for any reason you are unsatisfied, please contact us. We offer a money-back guarantee within 30 days of purchase.
Best budget
TERRO Drain Insect Killer – T590 Drain Fly Killer Spray – Foam Treatment for Fruit Flies, House Flies, and Cockroaches
Terro
- Leave the fruit fly drain treatment in the drain until the foam fully dissipates
- Extension tube allows for precise application of TERRO Drain Insect Killer Foam
- BREAKS THE LIFE CYCLE of drain flies, fruit flies, house flies, and roaches with drain flies killer
- ELIMINATES INFESTATIONS AND PREVENTS NEW ONES – Use as drain flies eliminator to stop active insects and block future invasions
- This fly spray can be used on all types of pipes
Scum buster
Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats, Sewer Flies and More – Works in All Drains – 32 Fl Oz
Eco Strong
- A Natural Fruit Fly Solution: Our non-toxic gel formula is safe for use around food and anywhere in the home, kitchen, bar, or restaurant.
- Drain Flies, Sewer Flies, Gnats, or Fruit Flies, any flies like to be in drain scum found in drains, pipes, or garbage disposals. This natural formula cleans out the scum from the drains, and it is safe for your plumbing.
- Home & commercial use: Our natural gel contains additional scum-busting properties, making this the most effective solution. Pour into a drain; this fast-acting treatment breaks up and digests drain scum.
- Occasional use of this gel treatment will keep your drains odor and scum free. By preventing the buildup of organic scum, you remove the risk of another problem.
- What to Expect: Some users commented that after the first treatment, they saw more flies. This is to be expected and means the product is working. By removing the drain scum, the flies leave. Please don't give up. Continue to treat as directed. You will see a decrease over the next few days or so.
Septic safe
Drain Fly Killer Powder – Eliminates Drain Flies, Fruit Flies & Gnats – Fast-Acting Treatment for Sinks, Drains & Showers – Septic Safe & Made in USA
Accelerator by Dr. Pooper
- Kills drain, fruit flies & gnats at the source Targets and eliminates common household pests in sinks, showers, floor drains, and garbage disposals. Disrupts the fly lifecycle to stop infestations before they spread.
- Fast-acting foaming formula Thick, expanding foam reaches deep into drains to dissolve organic buildup and destroy hidden breeding grounds—the root cause of recurring drain fly problems.
- Safe for septic systems & plumbing Gentle on pipes, tough on pests. This powder contains no harsh chemicals, making it ideal for homes with septic systems, older plumbing, or sensitive drain lines.
- Includes 4 full treatments (16 doses) Each pack provides four complete treatments with 16 individual doses. Long-lasting protection for kitchens, bathrooms, utility rooms, and commercial spaces.
- Made in the USA with trusted quality Manufactured to high safety and quality standards in the United States. Dependable results from a U.S.-based brand you can rely on.
Odor control
Green Gobbler Fruit Fly Killer+ – Kills Fruit Flies, Drain Flies & Sewer Flies, Gel Treatment for Use in Sinks & Pipes – Safe for Septic Systems, 32oz – Up to 8 USES (2 Pack)
Green Gobbler
- KILL FRUIT, DRAIN & SEWER FLIES: Get rid of the fly infestation and get back to enjoying your space. Green Gobbler's thick gel formula clings to pipes to eliminate annoying drain fly infestations. It kills fruit flies, drain flies and sewer flies.
- PERFECT FOR HOMES & BUSINESSES: Green Gobbler is perfect for homes, hotels, restaurants, bars and anywhere with a fruit, drain, or sewer fly problem. It can treat garbage disposals, floor drains, kitchen sinks, bathrooms, shower drains and more.
- EASY TO USE: Simply pour 8 ounces into your problem drain. This bottle uses anti-glug technology to help reduce splashing and provides up to eight drain treatments. For best results, we recommend using product at night or during lowest time of use. Repeat daily until desired results are achieved.
- MADE WITH CITRONELLA & CINNAMON: Our formula contains natural Citronella Oil and Cinnamon Oil to repel flies from your drain.
- GREEN GOBBLER GUARANTEE: Green Gobbler cares about its customers. We take pride in developing innovative & effective products for your home or business. If for any reason you are unsatisfied, please contact us. We offer a money-back guarantee within 30 days of purchase.
Natural solution
Kinzua Environmental Fly-Zyme, Highly Concentrated Enzyme Drain Cleaner for Pipes, Drain Gel for Fruit Flies, Organic Waste Degrader & Odor Neutralizer, 32 fl oz
KINZUA ENVIRONMENTAL
- Fruit Fly Control: Fly-Zyme's powerful enzyme formula targets and eliminates the root cause of drain and fruit flies by digesting food remnant buildup and preventing fly breeding in your drains, providing a cleaner and healthier environment
- Powerful Clinging Action: The thickened bacterial enzyme gel clings to drain pipes and traps, effectively coating and digesting organic material; This targeted approach ensures thorough cleaning and rapid bacteria multiplication, breaking down organic matter
- Safe Formula: Fly-Zyme drain fly eliminator contains no harmful insecticides or poisons; It uses non-pathogenic microorganisms and is salmonella-free, providing a safe solution for both commercial and household use
- Versatile Application: Our enzyme-based drain cleaner is ideal for use in restaurants, bars, kitchens, garbage disposals, and anywhere organic matter accumulates in drains; Fly-Zyme can be used as a preventative measure or to tackle existing infestations
- About Us: At Kinzua Environmental, we specialize in premium cleaning solutions that are safe and have professional strength for both commercial and household applications
Plant-based spray
STEM Kills Ants, Roaches And Flies: Plant-Based Active Ingredient Bug Spray, Botanical Insecticide For Indoor And Outdoor Use; 12 fl oz (Pack Of 1)
STEM
- Bug spray that quickly kills ants, roaches and flies
- Plant-based active ingredient bug killer safe for use around people and pets (when used as directed)
- Entomologist tested bug spray made with botanical extracts to kill bugs; with a fresh scent and no added dye, fragrance, or harsh chemical odors
- Bug killer for indoor and outdoor use, wherever bugs try to bother you
- Rooted in Nature, Optimized by Science
All-natural gel
Fruit Fly Drain Treatment | Drain Fly Eliminator | All-Natural, Eliminates Gnats, Sewer Flies and More – Works in All Drains – 1 Gallon
Eco Strong
- Drain Flies, Sewer Flies, Gnats, or Fruit Flies, any flies that live and breed in drains, pipes, or garbage disposals will be evicated by our all-natural formula; And it's safe for use in any plumbing
- A Natural Fruit Fly Eliminator: Our non-toxic gel formula is safe for use around food and anywhere in the home, kitchen, bar, or restaurant
- Home & commercial use Our all-natural gel contains additional scum-busting properties making this the most effective solution; Pour into a drain; this fast-acting treatment breaks up and digests drain scum
- Occasional use of this gel treatment will keep your drains odor and scum free; By preventing the buildup of organic scum, you eliminate the risk of another problem
Commercial grade
Nibor-D Insecticide Foam with IGR, Ready-to-Use for Fly and Cockroach Control, 360 Degree Application, Includes 17" Hose, (6 Pack, 21 oz Can)
Nisus
- DUAL-ACTION FORMULA: Combines borate-based insecticide and insect growth regulator to eliminate on-contact and stop insect development; disrupts life cycles to prevent reproduction and future infestations; ideal for flies, cockroaches, and other common indoor invaders.
- VERSATILE APPLICATION: Targets drains, cracks, crevices, voids, and other hard-to-reach areas; includes a 17-inch detachable hose for precision treatment; ideal for use in kitchens, bathrooms, and commercial spaces; suitable for indoor use only.
- READY-TO-USE FOAM: No mixing or special equipment is required; foam dissolves naturally after application for a quick and hassle-free solution; penetrates deeply into organic buildup and hidden areas to ensure effective treatment.
- EASY 360° APPLICATION: Equipped with a 360° valve for full coverage in any direction; perfect for spraying beneath equipment, into drain pipes, and along baseboards; reduces downtime in commercial and residential environments.
- MULTI-USE AND SAFE: Suitable for homes, restaurants, schools, hospitals, and food service areas; ensure sanitary conditions by treating breeding areas; safe for non-food surfaces when used as directed; effective in various settings like drains, trash chutes, and voids.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
Which product is best for long-term prevention?
Nibor-D Insecticide Foam with IGR contains an insect growth regulator for lasting control.
Which option is all-natural?
Fruit Fly Drain Treatment | Drain Fly Eliminator | All-Natural, Eliminates Gnats is plant-based and eco-friendly.
Which product works fastest?
Drain Fly Killer Powder provides rapid elimination of drain flies and gnats.
Which gel-based treatment is effective?
Green Gobbler Fruit Fly Goodbye Gel Drain Treatment targets flies directly in drains.
Which spray is best for deep drain treatment?
TERRO Drain Insect Killer Spray is designed to reach and treat deep drain infestations.
Which enzyme-based cleaner is recommended?
Fly-Zyme by Kinzua Environmental uses enzymes to break down organic matter causing infestations.
Which product targets multiple pests?
Green Gobbler Fruit Fly Killer+ eliminates fruit flies, drain flies, and sewer flies.
