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Mold on Pleiospilos nelii: Fungal Management in Mesembs

Situation: New Mesemb Collection Develops Mold

Recently acquired Pleiospilos nelii (split rock succulent) shows mold on shriveling old leaves after single watering. Concern about spread to new growth.

Immediate Containment

Isolate: Separate from all other plants immediately
Fungicide application: Brush powdered fungicide on affected leaves
Water restriction: Zero watering until old leaves removable

Soil Remediation

Complete soil replacement recommended
Incorporate fungicide into new mix
Ensure extremely fast drainage

Source Consideration

High probability plants arrived infected. Options:

Attempt treatment as above
Return to seller (preferred if recent purchase)
Quarantine all new acquisitions 3-4 weeks minimum

Mesemb-Specific Care Reminder

Extreme drought tolerance - water only when fully shrunken
Old leaf absorption is natural - don't water during this phase
High humidity = fungal magnet for these arid specialists

Early intervention saves collections; mesembs have zero tolerance for sustained moisture.

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