2,4-D and Pets
Find out if 2,4-D is toxic to dogs and cats.
Think your pet ate something toxic?
Call ASPCA Animal Poison Control Center: (888) 426-4435 or view emergency guide
2,4-D is one of the most widely used phenoxy herbicides in the United States, commonly found in lawn "weed and feed" products, broadleaf weed killers, and professional turf treatments. While effective against dandelions, clover, and other broadleaf plants, it is toxic to both dogs and cats. Pets can be exposed by walking on treated grass, ingesting granules, licking contaminated paws or fur, drinking from puddles, or chewing containers.
Symptoms of 2,4-D poisoning may appear within hours of exposure and include vomiting, diarrhea, drooling, lethargy, and muscle weakness. Affected animals may also show incoordination, tremors, stiffness, or—in severe cases—seizures. Cats are particularly sensitive to phenoxy herbicides, and even small exposures can become life-threatening.
Keep pets off treated lawns until the product has fully dried or, for granular products, until it has been watered in and the area is dry—often 24 to 48 hours or longer per label directions. Store all herbicides in locked cabinets, out of reach of pets, and never decant them into food or beverage containers.
If you suspect your pet has contacted or ingested 2,4-D, contact your veterinarian or a pet poison control center immediately. Bring the product label with you so the active ingredient concentration and formulation can be identified quickly.
Is 2,4-D Toxic to Dogs?
2,4-D is toxic to dogs. Ingestion or dermal exposure can cause vomiting, diarrhea, muscle weakness, and neurological signs; some breeds may be especially sensitive.
Is 2,4-D Toxic to Cats?
2,4-D is highly toxic to cats. Cats are particularly sensitive to phenoxy herbicides, and even small exposures can cause severe illness or death.
Active Ingredients
- 2,4-dichlorophenoxyacetic acid
- 2,4-D
Pest Targeted
- broadleaf weeds
Formulation
liquid concentrate, ready-to-use spray, granular, and ester or salt formulations
Signal Word
caution
Application Area
lawns, turf, pastures, golf courses, rights-of-way, and ornamental landscapes
EPA Registration Number
EPA Reg. No. varies by product
Symptoms to Watch For
- vomiting
- diarrhea
- muscle weakness
- lethargy
- ataxia
- hypersalivation
- tremors
- stiffness
- seizures
- depression
What If My Pet Was Exposed to 2,4-D?
Remove your pet from the source. Do not induce vomiting unless instructed by a veterinarian. Wipe paws and fur with a damp cloth if topical contact is suspected. Contact your veterinarian or a pet poison control center immediately and bring the product label.
Sources
Vet's Note
PetPilot provides general information for educational purposes. While we reference authoritative veterinary organizations, this page has not been individually reviewed by a veterinarian for your specific pet. Individual animals may react differently based on age, weight, breed, health conditions, and amount consumed. Always consult your veterinarian or a poison control center for personalized advice, especially if your pet is ill, injured, pregnant, nursing, or on medication.