How to Control Rats in a Barn?

Hey folks!

I’m struggling with a persistent rat problem in my horse barn. These pests are chewing through feed bags, contaminating grain, and even nesting in the hayloft! I’ve set up snap traps and poison bait stations, but the rats seem to multiply faster than I can catch them. With horses and livestock nearby, I’m worried about accidental poisoning and disease risks.

My situation:​

  • ​​Hotspots​​: Hayloft, feed storage, and gaps under barn doors.
  • ​​Damage​​: Ruined $800 worth of alfalfa last month. Horses are stressed by the constant scurrying.
  • ​​Attempted fixes​​: Peppermint oil sprays, steel wool in gaps, and weekly trap checks, no luck.

Barn cats are a MUST! My two ferals cleared out rats in 3 weeks. Also, ​install owl boxes​​ nearby, they hunt at night. For feed, use ​​galvanized metal bins ​ with tight lids. Rats can’t chew through!

@HorseWhisperer Do barn cats bother horses? I’ve got skittish foals and don’t want stress.

Pour ​concrete around the barn base​​ to block burrowing. For hayloft gaps, stuff ​stainless steel mesh​, rats hate the texture. Also, ​​keep hay stacked neatly​; messy piles = rat condos.

Bucket traps with ​​sunflower seeds + antifreeze​​ work great. Rats jump in for the seeds and drown. Place them along walls where they travel.

@EcoRancher Careful with antifreeze, deadly to pets/livestock if leaked! Use ​soapy water ​ instead.

Winter = rat invasion season! Before cold hits, ​​deep-clean the barn​. Remove spilled grain, and set ​T-Rex snap traps​​ baited with bacon. Check daily, they’re quick!

Elevate feed bags on ​​pallet racks​ 12+ inches off the ground. Rats hate climbing exposed legs. For grain, mix ​​food-grade diatomaceous earth​, safe for animals, deadly to rats.

I use ​solar-powered ultrasonic repellents​​ in the hayloft. Silent to humans but drives rats nuts. Pair with ​mint-soaked cotton balls​​ in nesting areas.

Avoid poison near livestock, they might eat poisoned rats and get secondary toxicity. ​Live traps​​ relocated 5+ miles away are safer.

Seal ALL gaps wider than 1/4 inch! Use ​​HVAC metal tape​, it’s chew-proof. Also, ​​mow grass short​ around the barn, no hiding spots.

Rats hate ​​ammonia smells​. Soak rags in ammonia and place near entry points (but keep away from livestock). Refresh weekly.

Brought in 2 barn cats and switched to metal bins. Already seeing fewer droppings! Anyone use ​motion-activated lights​ to scare rats at night?

For large barns, ​​automated bait stations kill humanely and track kills via app. Pricey but cuts labor by 70%.