Destructive parasitic fungi causing brown rot in plants

Wikipedia Word definitions in Wikipedia
Phytophthora (from Greek φυτόν ( phytón ), “plant” and φθορά ( phthorá ), “destruction”; “the plant-destroyer”) is a genus of plant-damaging Oomycetes (water molds), whose member species are capable of causing enormous economic losses on crops worldwide, ...

Wiktionary Word definitions in Wiktionary
n. Any of many parasitic fungus, of the genus (taxlink Phytophthora genus noshow=1), that cause brown rot in plants.