Rat Poison vs Traps: What California's Rodenticide Rules Mean for You
California restricts many rat poisons to protect wildlife. Here's what AB 1788 and AB 1322 mean for your home and why traps are usually the better choice.
California's AB 1788 and AB 1322 restrict the strongest anticoagulant rat poisons for most uses, which is why traps and exclusion are now the main tools for home rodent control. For most Arcadia homes, traps work better anyway, because they don't leave dead rats in your walls.
These laws were passed to protect wildlife like owls, hawks, bobcats and mountain lions that eat poisoned rodents. Below we explain what the rules changed, why poison causes problems inside homes and why trapping plus sealing is the approach we use.
Is rat poison legal in California?
Some rat poisons are still legal in California, but the strongest anticoagulant products are restricted for most uses under AB 1788 and AB 1322. Many products homeowners used to buy or have applied are no longer available for general residential use.
Rodenticide is a pesticide designed to kill rats and mice, usually by blocking blood clotting so the rodent bleeds internally over several days. Second-generation anticoagulants are the strongest, killing in a single feeding and staying in the body for a long time. That persistence is what makes them dangerous to animals that eat poisoned rodents.
What AB 1788 and AB 1322 changed
AB 1788, the California Ecosystems Protection Act, restricted second-generation anticoagulant rodenticides statewide, with limited exemptions for situations like public health needs and certain agricultural uses. AB 1322 later extended restrictions to the first-generation anticoagulant diphacinone.
What that means for you:
- Most strong anticoagulant baits aren't an option for routine residential rodent control.
- Pest control companies have shifted to trapping, exclusion and monitoring as primary tools.
- Old bait stations around your property may contain products that are now restricted.
- Wildlife near Arcadia, from the foothills to the Arboretum, benefits from fewer poisoned rodents in the food chain.
Rules can change, so pest control companies follow product labels and current state guidance on what's allowed.
Why poison causes problems indoors
Poison causes problems inside Arcadia homes because poisoned rats don't die right away. They take several days, and they often crawl into walls, attics or crawl spaces to die where you can't reach them.
- Odor: a dead rat in a wall smells for two to four weeks.
- Flies and mites: carcasses attract blowflies and release mites as they cool.
- Pets and kids: bait can be carried out of stations or eaten by pets.
- Secondary poisoning: pets and wildlife that eat a poisoned rat can be poisoned too.
- No fix for the cause: poison doesn't close the gap rats are using.
If you've used bait and now notice a smell, Dead Rodent Removal and Odor Control in Arcadia can find and remove the carcass.
Why traps usually work better
Traps usually work better than poison for Arcadia homes because you know exactly what you caught, the rat dies in the trap rather than in a wall, and there's no risk of poisoning pets or wildlife.
Snap traps, placed along the runways rats travel, kill almost instantly. In attics we put them along rafters and top plates. In garages we use enclosed traps along walls. Checked every two to three days, they clear most infestations in two to three weeks.
Our Rat Control in Arcadia uses trapping inside every home we work on, then seals the entry points so new rats can't replace the ones we caught.
This matters most near wildlife. In Rodent Control in Highland Oaks, homes back onto the foothills where hawks, owls and bobcats hunt. A poisoned rat there can poison a predator. Trapping keeps the problem contained.
Where bait still fits
Bait still fits in limited situations where it's allowed, used in locked, tamper-resistant stations outside buildings and according to the label. It's never our first choice inside a home.
For businesses, Commercial Rodent Control in Arcadia uses exterior monitoring stations and interior traps, with any bait limited to permitted products and uses. Inside food areas, we use traps only.
Common mistakes
These are the poison-related mistakes we see most in Arcadia homes.
- Using old bait you found in the garage. It may be a restricted product.
- Putting loose bait in the attic. Rats die in walls and you get the smell.
- Using poison instead of sealing. New rats replace the dead ones.
- Placing bait where pets can reach. Dogs and cats can be poisoned directly or by eating a poisoned rat.
- Mixing bait and traps without a plan. Rats may avoid traps if they're feeding on bait.
When to call a professional
Call a professional when you want rats gone without poison, or when you've used bait and are now dealing with odor or new activity. Rodent Control Arcadia traps, seals and removes old bait stations if needed.
On large estates with mature trees and lots of wildlife, Rodent Control in Upper Rancho relies on trapping and sealing so owls and hawks in the canopy aren't put at risk.
Frequently Asked Questions
These are the poison and trapping questions Arcadia homeowners ask most.
Get help with Rodent Control in Arcadia
Want rats gone without poison in your walls? Call us for a same-day inspection.