How do I delete my old test site?

If I were you, I’d build out redirects to the live site if you can.

Google indexes what it wants to and removes them when it wants to.

If the pages are in Google’s cache, you can’t change that except by asking Google to remove them.

Visit Google Webmaster Tools to find out how to ask that deleted pages (no longer available on the web) be removed from Google’s cache – see:

https://support.google.com/webmasters/bin/answer.py?hl=en&answer=1663637

[note – your duplicate thread on this question was deleted]

I just took over the website and am very inexperienced with wordpress and test sites. The test site still exists on the web, but I don’t have any links to the test site from my website. The only way to reach the test site is through google search. So I am trying to figure out how to get the test sites off of the google searches, but how do I do that if the test site is still live?

This might be what you need to do:

https://support.google.com/webmasters/bin/answer.py?hl=en&answer=156449&topic=1724262&ctx=topic

Hi lieluh,
I guess the old test website host is pointing to the same online folder as the actual website, right?

Anyway, WPyogi is right, you need to ask google to remove them via Webmaster.

You need to register the test website to Google Webmaster.
Then, upload in the root of the old website a robot.txt which exclude the entire website writing;

User-agent: *
Disallow: /

This is asking to the search engines to don’t index the whole website.
After this, ask to Google to remove the all website.

Of course, if the new host is sharing the same online folder of the old one, it’s going to be removed as well.
So I suggest to check when the old website is going to be removed, and only after that, remove the robot.txt and ask to Google to index the new website again.

There are other cleaner methods, like a 301 redirect, but it needs a bit of knowledge of .htaccess, I don’ suggest it to you.

Next time, check the “Discourage search engines from indexing this site” checkbox when you install WordPress or in the reading config page while the website on test.

Ciao!