| Kingdom: Chromista |
| Phylum: Oomycota |
| Class: Oomycetes |
| Order: Peronosporales |
| Family: Pythiaceae |
| Genus: Phytophthora |
| Subject: Phytophthora spp. De Bary |
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Subclass: Rosidae |
| Order: Rosales |
| Family: Rosaceae |
| Subfamily: Maloideae |
| Genus: Prunus |
| Subject: Prunus persica (L.) Batsch |