| china | | aphelenchoides ritzemabosi | species | 1 | 0 |
| netherlands | | aphelenchoides ritzemabosi | species | 3 | 0 |
| poland | | aphelenchoides ritzemabosi | species | 3 | 0 |
| russia | moscow city | aphelenchoides ritzemabosi | species | 3 | 0 |
| united kingdom | | aphelenchoides ritzemabosi | species | 2 | 0 |
| united states | | aphelenchoides ritzemabosi | species | 10 | 0 |