Bolivian begonia with Anthracnose? Rare but Treatable
Begonia boliviensis
Anthracnose on Bolivian begonia: What to Know?
Anthracnose on Bolivian begonia (Begonia boliviensis) is a fungal condition with high severity. Bolivian begonia has low susceptibility to this disease. Anthracnose is a fungal disease caused by fungi in the genus Colletotrichum that affects many plants, including vegetables, fruits, and trees. The disease thrives in cool, wet conditions, causing dark...
Bolivian begonia is a medium-care plant. Recovery from Anthracnose takes approximately 14 days with proper treatment. As an indoor plant, ensure good ventilation to aid recovery.
Unlike most plants, Bolivian begonia has natural resistance to Anthracnose. Best treated with preventive measures rather than reactive treatment. Unlike bacterial infections, Anthracnose on Bolivian begonia can be managed with organic fungicides. Without precautions, chemical treatments for Anthracnose can be harmful to pets. Use organic methods for Bolivian begonia in pet-friendly homes.
๐ What Does Anthracnose Look Like on Bolivian begonia?
- โข Small irregular yellow or brown spots on leaves
- โข Dark sunken lesions on leaves, stems, flowers and fruits
- โข Water-soaked lesions that darken as they age
- โข Pink gelatinous masses of spores in lesion centers during warm, moist weather
- โข Spots that expand and may cover entire leaves
- โข Defoliation in advanced stages
โ What Causes Anthracnose on Bolivian begonia?
- โ Caused by fungi in the genus Colletotrichum
- โ Cool wet weather promotes development
- โ Optimum temperature between 75-85ยฐF (24-29ยฐC)
- โ Foliage wet for extended periods of time
- โ Fungi overwinter in seeds, soil and garden debris
- โ Spores spread through water droplets
๐ How to Treat Anthracnose on Bolivian begonia?
TLDR: Treat Anthracnose on Bolivian begonia with quick treatment (~7 days) or organic (~14 days). Bolivian begonia has low susceptibility to this disease.
Quick Fixes
Remove and discard all visibly infected parts
Remove and discard all visibly infected parts
Apply commercial systemic fungicide (azoxystrobin or mancozeb)
Apply commercial systemic fungicide (azoxystrobin or mancozeb)
Adjust irrigation to avoid wetting foliage
Adjust irrigation to avoid wetting foliage
Second application of systemic fungicide
Second application of systemic fungicide
Assess treatment effectiveness
Assess treatment effectiveness
Organic Treatment
Remove all infected plant parts and discard in plastic bag
Remove all infected plant parts and discard in plastic bag
Apply organic liquid copper spray to all plant surfaces
Apply organic liquid copper spray to all plant surfaces
Switch irrigation regime to drip, avoiding foliage wetting
Switch irrigation regime to drip, avoiding foliage wetting
Second application of copper fungicide or neem oil
Second application of copper fungicide or neem oil
Assess progress and remove any new lesions
Assess progress and remove any new lesions
Final organic fungicide application and ongoing monitoring
Final organic fungicide application and ongoing monitoring
๐ก๏ธ How to Prevent Anthracnose on Bolivian begonia?
TLDR: Prevent Anthracnose on Bolivian begonia with 8 essential preventive care practices.
- โ Implement drip irrigation instead of overhead watering
- โ Give plants enough room to breathe and reduce humidity
- โ Remove infected plant material after harvest
- โ Practice crop rotation between hosts and non-hosts
- โ Choose resistant plant varieties when possible
- โ Use western grown seeds not exposed to the disease
- โ Avoid wetting foliage during watering
- โ Ensure good air circulation around plants
๐ฑ How to Care for Bolivian begonia to Prevent Anthracnose?
๐ง How to Water
Water when the top 2-3 cm of soil feels dry to the touch; avoid waterlogging as the tubers rot easily.
โ๏ธ Lighting
Give it filtered morning sun and shelter from harsh afternoon sun; intense direct light scorches the leaves.
๐ชด Ideal Soil
Use a well-draining, organically rich soil mix (add perlite or sand); slightly acidic to neutral pH.
Frequently asked questions
Can Anthracnose kill my Bolivian begonia?
How long does Bolivian begonia take to recover from Anthracnose?
Is Anthracnose contagious to other plants near Bolivian begonia?
Sources & References
- Anthracnose: Identification, Prevention & Treatment | Gardening Know How
- Anthracnose: How to Identify, Control, and Prevent Anthracnose | The Old Farmer's Almanac
- Anthracnose Disease: Symptoms, Treatment and Control | Planet Natural
- Anthracnose: Symptoms, Prevention & Treatment Methods
- How to Identify, Treat, and Prevent Anthracnose
- Bolivian begonia (Begonia boliviensis) Care Guide - ForwardPlant
- Begonia Boliviensis Guide: How to Grow & Care for Bolivian Begonia - GardenBeast
- Cรณmo cultivar y cuidar una Begonia boliviana - PictureThis
- Begonia boliviensis (T) - RHS
- Propagating My Begonia boliviensis - Greg App