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At a Maryland vineyard, Debi Persing guided her Boston terrier, Xephyr, slowly down a row of grapevines.
Vineyard workers and scientists had already identified several invasive spotted lanternfly egg masses hidden among the vines. They believed they had found them all.
Then Xephyr stopped at a vine they had marked clear. The little dog sat and pawed at the plant insistently.
When researchers checked more closely, they found the egg masses Xephyr had detected but trained experts missed.
