Mapping Old Man's Beard
The following videos show you how to report Old Man's Beard using iNaturalist, how to use the CAMS weed map and how to update the status of patches on the map.
Installing the CAMS weed map on a mobile device
This will prompt you to install ArcGIS Field Maps. After installing ArcGIS Field Maps, you don't need to sign in, the map is publicly available.
Click on the above link a second time to open the map (note there's an issue with entering the link into the URL bar of Chrome, you need to click the link instead).