Several fishing and conservation groups are suing the U.S. Environmental Protection Agency for failing to limit the use of six agricultural pesticides to protect salmon.

Several fishing and conservation groups are suing the U.S. Environmental Protection Agency for failing to limit the use of six agricultural pesticides to protect salmon.

A lawsuit filed in federal district court in Seattle Monday alleges the EPA has not taken action on measures that NOAA Fisheries Service called for in 2008 and 2009.

The service found six pesticides threaten the survival of several species of salmon and steelhead in the West.

It called for protections such as no-spray buffer zones.

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The pesticides are diazinon, malathion, chlorpyrifos, carbaryl, carbofuran and methomyl.

The EPA did not immediately return a call Monday seeking comment.