Bulk delete threads ?

[killerkraft]

Hello all,

In my board we use two external RSS feeds to featch information from a public television.

The problem is that after a days work you get something like 100 new posts, witch seems sometimes like spam.

Is there a smart way to delete all those posts in block after, lets say, 2 or 3 days ?

Thank's in afvance and greetings from Portugal,

KK