| Kingdom: Chromista | 
| Phylum: Oomycota | 
| Class: Oomycetes | 
| Order: Peronosporales | 
| Family: Pythiaceae | 
| Genus: Phytophthora | 
| Subject: Phytophthora infestans (Mont.) de Bary | 
| Kingdom: Plantae | 
| Phylum: Magnoliophyta | 
| Class: Magnoliopsida | 
| Subclass: Asteridae | 
| Order: Solanales | 
| Family: Solanaceae | 
| Genus: Solanum | 
| Subject: Solanum lycopersicum L. |