Here is my issue: I have got a domain name say myjlpweb1.com who has been working for ages and is referenced by Google. About 3 months ago I purchased a few new domain's that I parked in that domain, say mynewdomain1.com . I never refererenced them nor used them but it didn't stop Google to index them anyway.

A little over a month ago I uploaded a website for domain mynewdomain1.com alongside a sitemap; my issue is as of today Google still has got in its index pages belonging to myjlpweb1.com dating back from the time I purchased the domain. For example I can see a reference to mynewdomain1.com/page1.aspx whereas page1.aspx doesn't exist on mynewdomain1.com but to myweb1.com

The bottom line is how do I tell Google "Just forget what you have in your index and only use pages found in my sitemap".

This is for 7 domains.