Bromadiolone Rodenticide

🏷️ Brand Names — Same Active Ingredient

⚠️ Don't buy duplicates. All products below contain bromadiolone (0.005%) as the active ingredient. Buying two different brands is buying the same pesticide twice — they differ only in price, concentration, and formulation type.

Contrac Blox

Bell Labs · Bait block · 0.005% bromadiolone

Professional

Just One Bite II Bait Bars SAME ACTIVE INGREDIENT

Farnam · Bait bar · 0.005% bromadiolone

Consumer

d-Con Ultra Set Covered Mouse Trap (bait) SAME ACTIVE INGREDIENT

Reckitt · Consumer bait · 0.005% bromadiolone

Consumer

Hawk SAME ACTIVE INGREDIENT

Liphatech · Bait block · 0.005% bromadiolone

Professional

🎯 Target Pests

✓Norway Rat✓Roof Rat✓House Mouse✓Warfarin-resistant rodents

🔬 How It Works

Bromadiolone is a second-generation anticoagulant rodenticide. It inhibits Vitamin K epoxide reductase — the enzyme that allows rodents to recycle Vitamin K for blood clotting. Without clotting ability, rodents die from internal hemorrhage 4–7 days after consuming a lethal dose. Second-generation anticoagulants like bromadiolone are effective against rodents that have developed resistance to first-generation anticoagulants (warfarin, diphacinone).

Single-feeding efficacy: Unlike first-generation anticoagulants, a rodent typically only needs to consume a lethal dose in a single feeding session. This is a significant advantage in bait-shy situations.

⚗️ Mixing & Application Rates

No dilution — ready-to-use bait blocks. Place in tamper-resistant bait stations only.

Rat bait station placement

3–4 blocks per station

Place in tamper-resistant bait stations (required by law in most states for exterior use). Check every 3–5 days and replace consumed bait. In tamper-resistant stations away from children, pets, and non-target wildlife.

Mouse bait station placement

1 block per station

Place bait stations every 8–12 feet along active runways, against walls and in corners where mice travel.

Example

0.5 oz

per gallon

⚗️ Mixing Calculator

Enter your sprayer size and target rate — get the exact amount to pour. Backpack, hand sprayer, hose-end, or skid unit.

Open Calculator →

⚠️ Safety & Precautions

Second-generation anticoagulants are highly toxic to dogs, cats, raptors, and predatory mammals — secondary poisoning risk is significant
EPA requires tamper-resistant bait stations for all exterior rodenticide use (2023 regulations)
Keep children and pets away from all bait stations
If a pet consumes rodenticide, contact ASPCA Poison Control (888-426-4435) immediately — Vitamin K1 is the antidote
Wear gloves when handling bait — dispose of dead rodents in sealed bags

📄 SDS / Label Resources

SDS for Contrac Blox and equivalent products is available on the Bell Labs website and CDMS database. Search for 'bromadiolone' on the EPA label database for all registered products.

📄 CDMS Label Database 🏛️ EPA Label Search

🐛 Pests This Treats — Learn More

Click any pest to view its full identification guide, biology, and treatment options.

🐛 Ants → 🐛 House Mouse → 🐛 Norway Rat → 🐛 Rats → 🐛 Roof Rat → 🐛 Scales → 🐛 Ticks →

🌿 Environmental & Ecological Impact

🐝 Bees / PollinatorsNONE

🐟 Fish / Aquatic LifeLOW

🐦 BirdsHIGH

🐕 Mammals / PetsHIGH

🦐 Aquatic InvertebratesLOW

💡 Significant secondary poisoning risk to predators that eat poisoned rodents. Use in tamper-resistant stations only.

⏱️ Residual & Re-entry Timeline

🔹

Apply

Follow label mixing and application rates

🔸

Re-entry: Keep in tamper-resistant stations

Keep people and pets out of treated area

🟢

Effective period: Single feeding lethal

Active residual — killing or repelling target pests

🔄

Reapply

Re-treat when pest activity returns or residual expires

🔄 Alternatives & Related Products

Same chemical class or different approaches to the same pests.

🔄

Brodifacoum
Same class: Anticoagulant Rodenticide

🔄

Bromethalin
Same class: Neurotoxic Rodenticide

↔️

Pyrethrin
Different approach: Botanical Pyrethrin

↔️

Boric Acid
Different approach: Inorganic

❓ Frequently Asked Questions

Q: Is bromadiolone safe for pets?

Bromadiolone has significant mammalian toxicity. Keep all pets away from treated areas. Contact your vet or ASPCA Poison Control (888-426-4435) if ingested.

Q: Can I use bromadiolone indoors?

Check the specific product label — formulations vary. Baits and dusts often have indoor labeling; concentrates and granulars are typically outdoor.

Q: How long does bromadiolone last after application?

Residual varies by formulation, surface type, weather, and UV exposure. Indoor applications last longer than outdoor. Check the product label for re-application intervals.

Q: What should I do if exposed?

Remove contaminated clothing, wash skin with soap and water. For eye contact, rinse 15–20 minutes. For ingestion or severe symptoms, call Poison Control (1-800-222-1222). Have the product label available.

📋 Safety Data Sheet (SDS)

📋