| Red stele | |
|---|---|
| Common names | Lanarkshire disease |
| Causal agents | Phytophthora fragariae |
| Hosts | Strawberry, |
| EPPO Code | PHYTFR |
| Phytophthora fragariae | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Clade: | Stramenopiles |
| Phylum: | Oomycota |
| Order: | Peronosporales |
| Family: | Peronosporaceae |
| Genus: | Phytophthora |
| Species: | P. fragariae
|
| Binomial name | |
| Phytophthora fragariae Hickman, (1940)
| |
Phytophthora fragariae is a fungus-like (oomycete) plant pathogen that causes red stele, otherwise known as Lanarkshire disease, in strawberries. Symptoms of red stele can include a red core in the roots, wilting of leaves, reduced flowering, stunting, and bitter fruit. The pathogen is spread via zoospores swimming through water present in the soil, released from sporangia.