Phytophthora root rot is caused by what kind of pathogens?

Phytophthora root rot is caused by what kind of pathogens?

• A. Bacterial infections
• B. Airborne fungi only
• C. Viral pathogens
• D. Soil borne fungal pathogens called water molds

Answer: (D)

Phytophthora root rot is caused by soil-borne pathogens that are water molds, a group of oomycetes. These organisms live in moist soil and infect roots when conditions are wet, spreading through water in the soil and on contaminated plant material. They’re not bacteria, viral pathogens, or airborne fungi. The term water molds reflects their need for water for their motile spores, which is why drainage and avoiding overwatering are key management practices. In short, the disease is caused by soil-borne fungal pathogens called water molds.

Phytophthora root rot is caused by soil-borne pathogens that are water molds, a group of oomycetes. These organisms live in moist soil and infect roots when conditions are wet, spreading through water in the soil and on contaminated plant material. They’re not bacteria, viral pathogens, or airborne fungi. The term water molds reflects their need for water for their motile spores, which is why drainage and avoiding overwatering are key management practices. In short, the disease is caused by soil-borne fungal pathogens called water molds.