Yes it is. The easiest way to do this is to use the development version
of Passenger. You can then turn off Passenger for sub URIs, like this:
<VirtualHost ...>
ServerName ...
DocumentRoot ...
<Location /blog>
PassengerEnabled off # <---- !!!
</Location>
</VirtualHost>
--
Phusion | The Computer Science Company
Web: http://www.phusion.nl/
E-mail: in...@phusion.nl
Chamber of commerce no: 08173483 (The Netherlands)