Disabling the Automatic sharing on Google+

When you set up your blog it is defaulted to automatically share your blog posts with your Google+ contacts via email notifications.  To disable this do the following:

Go to your blogger dashboard

On the left side of the dashboard click on the Google+ tab  

Choose which box you'd like to use.  You can click to disable the boxes by clicking on the ticked one.  If you want to automatically share all of your posts leave the top one ticked.  If you want to be asked before sharing, select the middle box.  Don't choose the last box.  :D

You don't need to 'save' anywhere on this screen.  What you choose will be saved for your blog.  Hope that helps.