Elm seed bugs are native to Europe and the Mediterranean and were first documented stateside in Idaho in 2012. In 2017, the species was discovered in Colorado in Mesa, Delta and Montrose counties.

“There’s definitely a point where we thought he wouldn’t make it,” one Denver dog owner said after her 6-year-old golden retriever ingested some of a seed pod.

“There’s definitely a point where we thought he wouldn’t make it,” one Denver dog owner said after her 6-year-old golden retriever ingested some of a seed pod.

“There’s definitely a point where we thought he wouldn’t make it,” one Denver dog owner said after her 6-year-old golden retriever ingested some of a seed pod.