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Help us stop pesticide testing on dogs

A beagle in a pesticide toxicity test. Photo is illustrative of industry-wide testing conditions and is not tied to the specific studies analyzed below.
Our undercover investigation in 2018 documented beagles used in a pesticide toxicity test at a laboratory in Michigan.

This story begins with a beagle. For three months, she will be dosed daily with a pesticide. When the test is over, she'll be killed. For decades, tests like these have been used in an attempt to evaluate how safe pesticides are. But you can help us change it.

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Our undercover investigation in 2018 documented beagles used in a pesticide toxicity test at a laboratory in Michigan.

In January 2026, the United States Environmental Protection Agency recommitted to ending tests on mammals by 2035. Even so, dogs continue to be used in 90-day pesticide tests, during which dogs are forced to ingest chemicals designed to kill insects, fungi or weeds.

These cruel tests cause physical harm and psychological distress made worse by the stress caused by the dogs' confinement in a barren laboratory environment.

In 2023, scientists at Humane World for Animals and Syngenta Crop Protection reviewed testing data submitted to the EPA between 1998 and 2021.

They noted that 50 or more dogs are used to complete a single 90-day dog test.

The researchers looked at whether the dog tests affected the EPA's safety decisions.

They found that 9,200 dogs were used in tests that provided no benefit to human health protection.

All of the dogs were killed after the tests ended.

 

The data from the dog tests changed the safety recommendations for just nine of the 195 pesticides reviewed.

An estimated

0 dogs will be tested and killed if nothing changes
(Based on the number of dogs tested between 1998 and 2021.)

The EPA has committed to ending tests on mammals by 2035.

But until the 90-day dog test is eliminated, thousands more dogs will be used to test pesticides, despite evidence that these tests are rarely needed for EPA safety decisions.

 
Daisy, a beagle who was rescued in 2022 from Envigo—a massive research dog breeding facility in Virginia—by Humane World for Animals, was repeatedly bred to produce puppies who were then sold to animal testing facilities. This photo was taken in May 2026 in Mt. Airy, MD, where Daisy lives with her adopter, Jennifer Bevan-Dangel.

It's time to take action.

Tell the EPA to move quickly to eliminate the 90-day dog test requirement—and all tests on animals.

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