| bosnia and herzegovina | | alder yellows phytoplasma | species | 1 | 0 |
| france | alsace region | alder yellows phytoplasma | species | 11 | 0 |
| france | aquitaine region | alder yellows phytoplasma | species | 46 | 0 |
| france | bourgogne region | alder yellows phytoplasma | species | 3 | 0 |
| france | languedoc-roussillon region | alder yellows phytoplasma | species | 1 | 0 |
| france | limousin region | alder yellows phytoplasma | species | 4 | 0 |
| germany | | alder yellows phytoplasma | species | 27 | 0 |
| hungary | gyor-moson-sopron county | alder yellows phytoplasma | species | 3 | 0 |
| hungary | heves county | alder yellows phytoplasma | species | 1 | 0 |
| india | | alder yellows phytoplasma | species | 2 | 0 |
| italy | | alder yellows phytoplasma | species | 6 | 0 |
| italy | basilicata region | alder yellows phytoplasma | species | 1 | 0 |
| italy | friuli-venezia giulia autonomous region | alder yellows phytoplasma | species | 1 | 0 |
| italy | veneto region | alder yellows phytoplasma | species | 5 | 0 |
| lithuania | | alder yellows phytoplasma | species | 1 | 0 |
| macedonia | | alder yellows phytoplasma | species | 5 | 0 |
| montenegro | | alder yellows phytoplasma | species | 4 | 0 |
| serbia | | alder yellows phytoplasma | species | 2 | 0 |