DEP monitors and treats 48 rivers and streams spanning more than 1,800 miles for black flies, also knows as gnats.

The Maryland Department of Agriculture is ramping up its black fly control program, especially in Washington County.

No water was visible, but Danny assured me that if flocks of specks were moving north ... and withdrew a grub the width of an index finger and about an inch-and-a-half long. Bot fly larva, aka Eskimo ...