Weed Killer Linked to Deformed Frogs

  • A study published in the journal Nature suggests the herbicide Atrazine is most likely to blame for frog deformities (Photo courtesy of the US Fish and Wildlife Service)

Researchers have more evidence
that a weed killer is causing frogs to
be deformed. Lester Graham reports the
herbicide is used on farms across the
country:

Transcript

Researchers have more evidence
that a weed killer is causing frogs to
be deformed. Lester Graham reports the
herbicide is used on farms across the
country:

Study after study has been trying to find out why so many frogs are turning up
deformed.

This latest study published in the journal Nature suggests the herbicide Atrazine—is
most likely to blame. Atrazine is used on corn fields, sugarcane, and even
evergreen tree farms.

Jason Rohr with the University of South Florida is the lead author of the study. He
says Atrazine in water leads to more parasites, flatworms called trematodes. They
cause the deformities and deaths of frogs. But wait, there’s more.

“The amphibians seem to be getting hit with a double-whammy because they also
seem to be have an increase in susceptibility to the trematodes, if they’re exposed to
Atrazine.”

Rohr says farmers could help the frogs if they’d just switch herbicides. But Atrazine
is cheap.

For The Environment Report, this is Lester Graham.

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