| argentina | rio negro province | ilyonectria destructans | species | 3 | 0 |
| australia | | ilyonectria destructans | species | 2 | 0 |
| canada | | ilyonectria crassa | species | 3 | 0 |
| canada | alberta | ilyonectria crassa | species | 3 | 0 |
| canada | alberta | ilyonectria destructans | species | 1 | 0 |
| canada | new brunswick | ilyonectria destructans | species | 2 | 0 |
| canada | nova scotia | ilyonectria crassa | species | 9 | 0 |
| canada | ontario | ilyonectria destructans | species | 3 | 0 |
| canada | quebec | ilyonectria destructans | species | 1 | 1 |
| china | | ilyonectria crassa | species | 40 | 0 |
| china | | ilyonectria destructans | species | 111 | 0 |
| china | | ilyonectria destructans f. sp. panacis | no rank | 210 | 0 |
| china | guangdong | ilyonectria destructans | species | 2 | 0 |
| china | yunnan | ilyonectria destructans | species | 2 | 0 |
| colombia | | ilyonectria crassa | species | 1 | 0 |
| costa rica | | ilyonectria destructans | species | 1 | 0 |
| czech republic | | ilyonectria destructans | species | 2 | 0 |
| czech republic | south moravian region | ilyonectria destructans | species | 2 | 0 |
| ecuador | | ilyonectria destructans | species | 4 | 0 |
| germany | | ilyonectria destructans | species | 2 | 0 |
| iran | | ilyonectria destructans | species | 4 | 0 |
| italy | | ilyonectria crassa | species | 1 | 0 |
| japan | | ilyonectria destructans | species | 1 | 0 |
| japan | | ilyonectria destructans f. sp. panacis | no rank | 1 | 0 |
| lithuania | | ilyonectria crassa | species | 1 | 0 |
| lithuania | | ilyonectria destructans | species | 10 | 0 |
| madagascar | analamanga region | ilyonectria destructans f. sp. panacis | no rank | 1 | 0 |
| montenegro | | ilyonectria destructans | species | 1 | 0 |
| netherlands | | ilyonectria crassa | species | 9 | 0 |
| netherlands | | ilyonectria destructans | species | 1 | 0 |
| netherlands | flevoland province | ilyonectria destructans | species | 2 | 0 |
| new zealand | | ilyonectria crassa | species | 2 | 0 |
| poland | | ilyonectria crassa | species | 5 | 0 |
| poland | | ilyonectria destructans | species | 1 | 0 |
| portugal | | ilyonectria destructans | species | 7 | 0 |
| portugal | lisboa district | ilyonectria destructans | species | 3 | 0 |
| portugal | santarem district | ilyonectria destructans | species | 10 | 0 |
| portugal | viseu district | ilyonectria destructans | species | 1 | 0 |
| romania | bihor county | ilyonectria destructans | species | 1 | 0 |
| russia | | ilyonectria crassa | species | 4 | 0 |
| saudi arabia | | ilyonectria destructans | species | 1 | 0 |
| south korea | | ilyonectria destructans | species | 17 | 0 |
| spain | | ilyonectria destructans | species | 2 | 0 |
| sweden | | ilyonectria destructans | species | 13 | 0 |
| sweden | skane | ilyonectria destructans | species | 6 | 0 |
| switzerland | | ilyonectria destructans | species | 10 | 0 |
| switzerland | geneva region | ilyonectria destructans | species | 1 | 0 |
| tunisia | | ilyonectria destructans | species | 4 | 0 |
| united kingdom | | ilyonectria crassa | species | 2 | 0 |
| united states | | ilyonectria crassa | species | 1 | 0 |
| united states | | ilyonectria destructans | species | 2 | 0 |
| united states | california | ilyonectria destructans | species | 9 | 0 |
| united states | idaho | ilyonectria destructans | species | 1 | 0 |
| united states | tennessee | ilyonectria destructans | species | 2 | 0 |
| venezuela | amazonas | ilyonectria destructans | species | 10 | 0 |
| vietnam | | ilyonectria destructans | species | 2 | 0 |