PupkeeperCaution
Treated lawns (weed killer and pesticides) and dogs: what to do
Caution. Lawns treated with weed killers or pesticides are usually low risk once dry, but wet products or spills can poison dogs.
If your dog ate or touched this, call your vet or a pet poison line now
United States
Poison lines in other countries: United Kingdom, Australia, Canada, New Zealand
What to do now
- Call your vet or a pet poison line now.
- Bathe your dog if it walked on a freshly treated lawn.
- Have the product label ready when you call.
Don't
- Don't let your dog back on treated grass until it has completely dried.
Signs to watch for
- Eye or skin irritation
- Coughing or sneezing
- Drooling
- Vomiting
- Low energy
- Staggering or weak back legs
- Tremors or seizures (severe cases)
Why
Grass treated at label rates is usually not dangerous, especially once dry. Most poisonings come from spills, open containers or too much product.
Sources
- VCA Animal Hospitals: Garden Products and Critters
- Merck Veterinary Manual: Herbicide Poisoning
- Pet Poison Helpline: Insecticides
Guide reviewed 9 October 2026.
General information from the sources above, not a diagnosis. When in doubt, call your vet.