Assertion: european corn borer | /r/HasProperty | introduced
Facets:
value: probably
type: DEGREE
value: several years earlier
type: TEMPORAL
value: from europe
type: LOCATION
Source sentences:
text: The European corn borer was first reported in North America in 1917 in Massachusetts, but was probably introduced from Europe several years earlier.
text: The European corn borer, an introduced species, has been an important pest of corn in the Midwest since the 1920's.