Here's how you can make your community posts appear or disappear from your posts tab in Google+.
1. Go to Account.
2. Go to Google+.
3. Scroll down to Communities.
4. Uncheck or check the "Show your Google+ communities posts on the Posts tab of your Google+ profile."
For more, see the original article at the link below.
New to Google+? Here are 5 Essential Tips | TechnoDuet