You want to recruit affiliates? Are you a merchant with an affiliate program? Then yes, you definitely need an affiliate landing page that explains all about your program. If you are just an affiliate trying to recruit affiliates for your 2nd tier and if that's a primary goal for your site, then yes you could also have a page describing the benefits of the program.
Yes, you would benefit from an exclusive page dedicated to the affiliate program. Talk about... - Why it's so unique, what makes you better than the competition (commission? affiliate support? etc). - The payment amount and structure (time/paypal or check etc). The more details and tools that you provide your potential affiliates with, the more successful you'll be. Note though that about 90% of affiliates are pretty inactive.