**Fungi Friday Alert!**
The feature for this week’s edition of Fungi Friday is Cercospora.
Cercospora may occasionally appear on a mold testing lab analysis—particularly environmental or indoor air quality tests—for a few key reasons, even though it’s primarily a plant pathogen:
1. Broad Fungal Screening
Many mold tests (especially air sampling and dust analysis) detect a wide range of fungal spores, not just those typically associated with indoor mold problems (like Aspergillus or Stachybotrys). Cercospora spores are airborne and can be present in dust or outdoor air that infiltrates indoor spaces.
2. Outdoor-Indoor Transfer
Cercospora species are common in outdoor environments, especially in regions with agriculture or lush vegetation. Spores can:
Enter buildings through open windows, HVAC systems, or on clothing.
Settle in indoor dust or air samples, especially in buildings near farms, greenhouses, or gardens.
3. Differentiating Source of Mold
Including Cercospora in reports helps lab analysts distinguish between:
Indoor mold growth (a potential health and structural issue), vs.
Outdoor mold infiltration (less concerning from a building health standpoint).
4. Health or Allergen Studies
Although Cercospora is not a typical indoor mold, it may have allergenic potential in sensitive individuals. Comprehensive mold panels sometimes list it in environmental allergy screenings or biodiversity surveys.
Give us a call at 813-924-4721 to schedule your Indoor Air Quality or Mold Assessment today.
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Enviro-Hazard Testing Inc is a woman owned, local company proudly servicing the Central Florida area of Mount Dora, The Villages, Orlando, Clermont and more.
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Photo Source: https://plantpath.ifas.ufl.edu/u-scout/cucurbit/cercospora-leaf-spot.html#lg=1&slide=6
