Close up of a window trap on Scots pine tree in southern Sweden. Note the plastic dispenser containing ethanol attractive to some "secondary" bark beetles such as
Trypodendron lineatum
and
T. domesticum
as well as
Hylurgops paliatus
.
Images © 1996 by John A. Byers,
Chemical Ecology
.
Close up of a window trap on Scots pine tree in southern Sweden.
Note the plastic dispenser containing ethanol attractive to some "secondary" bark beetles such as
Trypodendron lineatum and T. domesticum as well as Hylurgops paliatus.