How to Remove the Reply Box on Wordpress

Disabling Comments on One Post
1. Open the 'Posts' menu on the left side of the WordPress dashboard. Click 'Add New' or click the 'Edit' link under an existing post to display the post editing screen.
2. Click the 'Screen Options' pull-down menu at the top of the editing screen.

3. Click the 'Discussion' check box to select it, and then click 'Screen Options' again to retract the menu.
4. Scroll down to the 'Discussion' heading and clear the check from the box next to 'Allow Comments.'
5. Scroll back to the top of the page, and click the 'Publish' or 'Update' button.
Disabling All Comments
6. Open the 'Settings' menu on the left side of the WordPress dashboard, and then click 'Discussion.'
7. Clear the check from the box next to 'Allow people to post comments on new articles.'
8. Scroll to the bottom of the page, and click the 'Save Changes' button.