I need help with an edit!

Ensure that you are viewing at 100% or 1:1 view so that you are not introducing further moiré on the monitor view, over and above what may or may not be present in the image. If resampling, the same rule applies.

There is a good tutorial here:

https://web.archive.org/web/20121014051721/http://www.dbphoto.net/moire/indexpage.html

Back in 2003 I created an action based on this tutorial. It was based around Photoshop 5.0, but I don't think that anything has greatly changed that would make the action invalid today.

Edit: Here is a quick, rough-n-ready example, I didn't make much effort at clean masking or painstaking effort at removing the major bands.

Click on the image below, then right click the reduced size preview and open the image in a new window or tab, depending on your browser, you may need to click again to show the image at full 1:1 scale (4888x1629px) rather than at a reduced view. You could also download from this view to inspect in Photoshop at 100% view.

https://www.google.com/search?q=photoshop+dealing+with+moire&oq=photoshop+dealing+with+moire&aqs=chrome..69i57j33i160.1707j0j1&sourceid=chrome&ie=UTF-8