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Dogs detect invasive species

Dogs trained to detect oak wilt, invasive species

Cornell University
20-Apr-2020 2:05 PM EDT, by Cornell University

Newswise — ITHACA, N.Y. – Dogs have highly sensitive noses, a trait environmental conservationists, land managers and plant disease specialists are harnessing to sniff out invasive species.

A group at the NY NJ Trial Conference, which hosts the Lower Hudson Partnership for Regional Invasive Species Management (PRISM), a partner with Cornell Cooperative Extension (CCE), started training dogs in 2018 to recognize scotch broom, an invasive shrub, and spotted lantern flies, invasive pests that feed on grapes, apples and other plant species.

In March, Karen Snover-Clift, director of the Cornell University Plant Disease Diagnostic Clinic (CUPDDC), helped conservation dog handlers teach the dogs to recognize and seek out oak wilt, a devastating oak disease that has appeared in a few areas in New York state.

“When we talk about protecting our forests and keeping out these invasive plant pathogens, our primary goal is to find them as quickly as possible because that increases our chances of having a successful eradication,” Snover-Clift said. “So I think that introducing the dogs to this program would allow us to do that more quickly and more successfully.”

In November 2018, Snover-Clift attended an Agriculture, Food & Environmental Systems In-service conference through CCE, which brought together faculty, educators and industry professionals from various agricultural fields to discuss the latest developments in research and practice. She attended a session on using dogs to identify invasive weeds and insects, presented by Working Dogs for Conservation, a Montana-based group that was training staff at the NY NJ Trail Conference-PRISM.

After the session, Snover-Clift spoke with Linda Rohleder, the director of the NY NJ Trail Conference-PRISM, who was pursuing a grant to determine if dogs could effectively detect key invasive species in New York. Snover-Clift suggested using the oak wilt pathogen for the project because it is a devastating pathogen, it is spreading very slowly and it can smell like stale beer or bread yeast, to humans.

Beese, located a young Labrador from Wisconsin, named Dia, with the right temperament for the job.

“You need a dog that is probably not the world’s best pet,” Snover-Clift said. “You need one that is very high-energy and will want to keep playing for us … keep finding their target.”

The NY NJ Trail Conference-PRISM team came to Cornell March 12 for two days of oak wilt detection training for Dia and Fagen, a search and rescue Belgian Malinois that Beese was also teaching. The dogs learned fast.

Immediately following the initial training at Cornell and with the help of Rob Cole, the state Department of Environmental Conservation’s oak wilt response incident commander, the group tested the dogs in real-world conditions, where oak wilt had been detected and trees were removed in Ontario and Yates counties. In both locations, the dogs performed extremely well.

Snover-Clift hopes to secure funding to further train dogs to detect oak wilt and then hopefully branch out to other organisms.

“Knowing what the conservation dogs in Montana have done, I’m sure we can broaden Dia and Fagen’s targets.” Snover-Clift said. “And we have a long list of organisms that are harmful to our crops and natural systems here in New York state. The dogs have shown us that they can do this.”

For additional information, see this Cornell Chronicle story. 

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