| nmsu.edu | New Mexico State University Cooperative Extension Service |
| osu.edu | Ohio State University Extension |
| ksu.edu | Kansas State University Research and Extension |
| cornell.edu | Cornell Cooperative Extension |
| unl.edu | University of Nebraska Cooperative Extension |
| oregonstate.edu | Oregon State University Extension |
| missouri.edu | University of Missouri Outreach and Extension |
| uidaho.edu | University of Idaho Extension - District IV Office |
| wsu.edu | Washington State University Cooperative Extension |
| uky.edu | University of Kentucky Cooperative Extension Service |
United States , California , Berkeley