Hive advice?

Justin has a question. Anyone who has advice for him, please leave it as a comment on this blog. If you are registered and sign in, you will see "post a comment." If you don't want to sign in, send a private message or email secretary at alamedabee dot org.

Meeting is Tuesday, June 10, 7:30 PM at Alameda County Fairgrounds. For help with swarms, email denise at pollinationconnection dot org.

Here's Justin's question:

I'm a new beekeeper.  I have one deep super I started in April.  I hadn't checked on them in a couple of weeks, and they have outgrown their space.  I've added a couple of new hive bodies, but before I did, they started building comb on the bottom of the hive.  What I think I should do (not really knowing any better) is to scrape that off and clean it up.  They should go back to building in the new space I've now provided, right?  Sounds good in theory.  Anybody have any reason why I shouldn't do that?

Appreciate your suggestions.