Assertion: gypsy moth's introduction | /r/CapableOf | fly compsilura concinnata
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Source sentences:
text: Through the early parts of the 20th century it was present in much of New England from eastern Connecticut to Maine, and northward into New Brunswick, Canada, but the 1906 introduction of the parasitic tachnid fly Compsilura concinnata to counter gypsy moths collaterally impacted brown-tail moths.