Photo 6. (L) Closeup of fresh and (C) older black turpentine beetle pitch tubes.  (R) Black turpentine beetle adults in the inner bark; beetles are about 5/16 inch long.

Photo 6.
(L) Closeup of fresh and (C) older black turpentine beetle pitch tubes.
(R) Black turpentine beetle adults in the inner bark; beetles are about 5/16 inch long.