Peacock Plant with Southern Blight? Rare but Treatable
Goeppertia makoyana
Southern Blight on Peacock Plant: What to Know?
Southern Blight on Peacock Plant (Goeppertia makoyana) is a fungal condition with high severity. Peacock Plant has low susceptibility to this disease. Southern blight is a devastating soilborne fungal disease caused by Athelia rolfsii (formerly Sclerotium rolfsii), affecting over 500 plant species including vegetables, ornamentals, and fruit crops....
Peacock Plant is a hard-care plant. Recovery from Southern Blight takes approximately 21 days with proper treatment. As an indoor plant, ensure good ventilation to aid recovery.
Unlike most plants, Peacock Plant has natural resistance to Southern Blight. Best treated with preventive measures rather than reactive treatment. Unlike bacterial infections, Southern Blight on Peacock Plant can be managed with organic fungicides.
ð What Does Southern Blight Look Like on Peacock Plant?
- âĒ Brown to black lesions on stem near soil line
- âĒ Water-soaked appearance on lower leaves
- âĒ Sudden and permanent wilting of entire plant within days
- âĒ White mycelium radiating from plant base onto soil surface
- âĒ Spherical tan to reddish-brown sclerotia (1-2mm)
- âĒ Yellowing and necrosis of foliage
- âĒ Crown and root rot
- âĒ On fruits: sunken yellow lesions turning water-soaked
â What Causes Southern Blight on Peacock Plant?
- â Soilborne fungus Athelia rolfsii surviving through sclerotia
- â High temperatures (25-30°C / 77-95°F)
- â High soil moisture and relative humidity above 90%
- â Acidic soil (pH below 7, especially pH 2-5)
- â Spread through infested soil and plant debris
- â Contaminated tools, irrigation water, and transplants
- â Contaminated mulch or compost
- â Plant stress and stem injuries
ð How to Treat Southern Blight on Peacock Plant?
TLDR: Treat Southern Blight on Peacock Plant with quick treatment (~11 days) or organic (~21 days). Peacock Plant has low susceptibility to this disease.
Quick Fixes
Step 1
Remove infected plants IMMEDIATELY with roots and soil
Step 2
Apply azoxystrobin drench to adjacent plants
Step 3
Spray mancozeb on base of all plants in area
Step 4
Drastically reduce irrigation
Step 5
Reapply fungicides every 7-10 days for 3 weeks
Organic Treatment
Step 1
Remove diseased plants and 3 inches of contaminated soil
Step 2
Solarize area with clear plastic for 6 weeks
Step 3
Incorporate compost rich in Trichoderma
Step 4
Adjust soil pH with lime
Step 5
Improve drainage and plant spacing
Step 6
Apply preventive bicarbonate spray biweekly
ðĄïļ How to Prevent Southern Blight on Peacock Plant?
TLDR: Prevent Southern Blight on Peacock Plant with 10 essential preventive care practices.
- â Carefully inspect transplants for sclerotia before planting
- â Avoid planting in fields with history of infestation
- â Maintain soil pH above 7 (lime reduces sclerotial germination)
- â Improve plant spacing to increase airflow
- â Use high-quality mulches from reputable suppliers
- â Rotate with non-host crops (corn, wheat, barley) for 2-3 years
- â Avoid overwatering and excessive soil moisture
- â Disinfect tools between plants
- â Deep plow (8-12 inches) to bury sclerotia
- â Remove symptomatic plants and weeds immediately
ðą How to Care for Peacock Plant to Prevent Southern Blight?
ð§ How to Water
Water approximately every 7 days when the top inch of soil dries out. Always use filtered water or tap water left to sit for 24 hours to prevent fluoride buildup, which causes brown leaf tips.
âïļ Lighting
Place in bright indirect light away from direct sun rays, which can scorch and fade the beautiful leaf markings. East- or north-facing windows work best.
ðŠī Ideal Soil
Use a moist, well-draining peat-based mix amended with perlite and organic compost. Ideal pH is 6.0â7.0. Avoid compacted or heavy soils that retain excess moisture.
Frequently asked questions
Can Southern Blight kill my Peacock Plant?
How long does Peacock Plant take to recover from Southern Blight?
Is Southern Blight contagious to other plants near Peacock Plant?
Sources & References
- Southern Blight - Wisconsin Horticulture
- Southern Blight of Tomato and Pepper - NC State Extension
- Southern Blight - Prevention, Control and Damage - Koppert
- Southern blight - APS
- An Overview of Southern Blight - Virginia Tech
- Calathea Makoyana Care Guide - Leafy Place
- Calathea makoyana care & propagation - Plantura
- Peacock Plant Care Guide - Gardenia
- Goeppertia makoyana - NC Extension Gardener
- Peacock Plant Care - Smart Garden Guide