Pesticides, Fertilizers Linked to Frog Decline

A pesticide compound commonly used in the United States is linked to the growth of tiny parasites that sicken and kill frogs and also harms the amphibians’ immune defenses against infection, according to a study published Thursday.

© Getty Images

© Getty Images

The impact of this chemical is boosted in the wild by phosphate fertilizers, the investigators believe.

Runoff from fertilizers into ponds encourages the proliferation of snails that are a natural host to the flatworm parasites, they say.

The flatworms, called trematodes, are notorious for causing limb malformations, kidney damage and sometimes death in several species of frog.

Full story Discovery Channel

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