Field Pansy with Anthracnose? Rare but Treatable
Viola arvensis
Anthracnose on Field Pansy: What to Know?
Anthracnose on Field Pansy (Viola arvensis) is a fungal condition with high severity. Field Pansy 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...
Field Pansy is a easy-care plant. Recovery from Anthracnose takes approximately 14 days with proper treatment.
Unlike most plants, Field Pansy has natural resistance to Anthracnose. Best treated with preventive measures rather than reactive treatment. Unlike bacterial infections, Anthracnose on Field Pansy can be managed with organic fungicides.
ð What Does Anthracnose Look Like on Field Pansy?
- âĒ Small irregular yellow or brown spots on leaves
- âĒ Dark sunken lesions on leaves, stems, flowers and fruits
- âĒ Water-soaked lesions that darken as they age
- âĒ Pink gelatinous masses of spores in lesion centers during warm, moist weather
- âĒ Spots that expand and may cover entire leaves
- âĒ Defoliation in advanced stages
â What Causes Anthracnose on Field Pansy?
- â Caused by fungi in the genus Colletotrichum
- â Cool wet weather promotes development
- â Optimum temperature between 75-85°F (24-29°C)
- â Foliage wet for extended periods of time
- â Fungi overwinter in seeds, soil and garden debris
- â Spores spread through water droplets
ð How to Treat Anthracnose on Field Pansy?
TLDR: Treat Anthracnose on Field Pansy with quick treatment (~7 days) or organic (~14 days). Field Pansy 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
ðĄïļ How to Prevent Anthracnose on Field Pansy?
TLDR: Prevent Anthracnose on Field Pansy with 8 essential preventive care practices.
- â Implement drip irrigation instead of overhead watering
- â Give plants enough room to breathe and reduce humidity
- â Remove infected plant material after harvest
- â Practice crop rotation between hosts and non-hosts
- â Choose resistant plant varieties when possible
- â Use western grown seeds not exposed to the disease
- â Avoid wetting foliage during watering
- â Ensure good air circulation around plants
ðą How to Care for Field Pansy to Prevent Anthracnose?
ð§ How to Water
Water when the top of the soil feels dry, roughly once or twice a week; keep the soil evenly moist but never waterlogged, as soggy conditions invite root rot.
âïļ Lighting
Give field pansy full sun for the best flowering, though it tolerates partial shade well, especially in warmer climates where afternoon shade helps it avoid heat stress.
ðŠī Ideal Soil
Plant in well-drained loam, sand, or clay soil enriched with organic matter; it tolerates a wide pH range but prefers slightly acidic to neutral conditions.
Frequently asked questions
Can Anthracnose kill my Field Pansy?
How long does Field Pansy take to recover from Anthracnose?
Is Anthracnose contagious to other plants near Field Pansy?
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
- NC State Extension Gardener Plant Toolbox - Viola arvensis
- RHS - Viola arvensis (field pansy)
- NC State Extension - Violets common name page
- EarthOne - How To Grow Viola arvensis
- Wikipedia PT - Violeta-dos-campos
- SIB Parques Nacionales Argentina - Viola arvensis (pensamiento silvestre)