Stink bugs in Hitchcockian numbers buzz the Roanoke region these days as autumnal annoyances. They cling to window screens and walls. They mightily enjoy piercing apples with their tiny beaks and their small, sucking mouth parts.

An insect expert at Virginia Tech said Thursday that the Roanoke Valley seems to be Virginia’s hotbed for the brown marmorated stink bug — an exotic, invasive species that apparently hitched a ride to the Northeast more than a decade ago via Asian imports.

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