| Kingdom: Chromista |
| Phylum: Oomycota |
| Class: Oomycetes |
| Order: Peronosporales |
| Family: Pythiaceae |
| Genus: Phytophthora |
| Subject: Phytophthora cinnamomi Rands |
| Kingdom: Plantae |
| Phylum: Coniferophyta |
| Class: Pinopsida |
| Order: Pinales |
| Family: Pinaceae |
| Genus: Pinus |
| Subject: Pinus echinata P. Mill. |