The US Forest Service has made available these informative leaflets on forest insects and diseases. Users may browse the Master Directory by species common name or select the Western or Eastern directories. More than 170 leaflets are listed, from Mountain Pine Beetle to Two-lined Chestnut Borer; note that a few leaflets are available only in [.pdf] format, and not all are available online. Online leaflets offer text of life history, hosts, associated insects, and control techniques; color photographs and a reference section complete each account. Most accounts were written in the 1970's and 1980's, but much of the information is still widely applicable.