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Anthracnose

Mandarin Orange Prone to Anthracnose: How to Protect

Citrus reticulata

Susceptibility: High Severity: High Difficulty: Medium

Anthracnose on Mandarin Orange: What to Know?

Anthracnose on Mandarin Orange (Citrus reticulata) is a fungal condition with high severity. Mandarin Orange has high 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...

Mandarin Orange 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.

Mandarin Orange is highly susceptible to Anthracnose, unlike most plants in the same family. Without early intervention, recovery takes 21 days instead of 14 days. Unlike bacterial infections, Anthracnose on Mandarin Orange can be managed with organic fungicides. Without precautions, chemical treatments for Anthracnose can be harmful to pets. Use organic methods for Mandarin Orange in pet-friendly homes.

🔍 What Does Anthracnose Look Like on Mandarin Orange?

  • Small irregular yellow or brown spots on leaves
  • Dark sunken lesions on leaves, stems, flowers and fruits
  • Water-soaked lesions that darken as they age
  • Pink gelatinous masses of spores in lesion centers during warm, moist weather
  • Spots that expand and may cover entire leaves
  • Defoliation in advanced stages

What Causes Anthracnose on Mandarin Orange?

  • Caused by fungi in the genus Colletotrichum
  • Cool wet weather promotes development
  • Optimum temperature between 75-85°F (24-29°C)
  • Foliage wet for extended periods of time
  • Fungi overwinter in seeds, soil and garden debris
  • Spores spread through water droplets

💊 How to Treat Anthracnose on Mandarin Orange?

TLDR: Treat Anthracnose on Mandarin Orange with quick treatment (~7 days) or organic (~14 days). Mandarin Orange has high susceptibility to this disease.

Quick Fixes

1

Remove and discard all visibly infected parts

Remove and discard all visibly infected parts

2

Apply commercial systemic fungicide (azoxystrobin or mancozeb)

Apply commercial systemic fungicide (azoxystrobin or mancozeb)

3

Adjust irrigation to avoid wetting foliage

Adjust irrigation to avoid wetting foliage

4

Second application of systemic fungicide

Second application of systemic fungicide

5

Assess treatment effectiveness

Assess treatment effectiveness

🌿

Organic Treatment

1

Remove all infected plant parts and discard in plastic bag

Remove all infected plant parts and discard in plastic bag

2

Apply organic liquid copper spray to all plant surfaces

Apply organic liquid copper spray to all plant surfaces

3

Switch irrigation regime to drip, avoiding foliage wetting

Switch irrigation regime to drip, avoiding foliage wetting

4

Second application of copper fungicide or neem oil

Second application of copper fungicide or neem oil

5

Assess progress and remove any new lesions

Assess progress and remove any new lesions

6

Final organic fungicide application and ongoing monitoring

Final organic fungicide application and ongoing monitoring

🛡️ How to Prevent Anthracnose on Mandarin Orange?

TLDR: Prevent Anthracnose on Mandarin Orange with 8 essential preventive care practices.

  • Implement drip irrigation instead of overhead watering
  • Give plants enough room to breathe and reduce humidity
  • Remove infected plant material after harvest
  • Practice crop rotation between hosts and non-hosts
  • Choose resistant plant varieties when possible
  • Use western grown seeds not exposed to the disease
  • Avoid wetting foliage during watering
  • Ensure good air circulation around plants

🌱 How to Care for Mandarin Orange to Prevent Anthracnose?

Frequently asked questions

Can Anthracnose kill my Mandarin Orange?
Yes, without treatment, Anthracnose can be fatal to Mandarin Orange. Early detection and treatment are key.
How long does Mandarin Orange take to recover from Anthracnose?
With proper treatment, recovery takes approximately 14 days. Without treatment, it can take significantly longer.
Is Anthracnose contagious to other plants near Mandarin Orange?
Yes, Anthracnose can spread to nearby plants. Isolate the affected Mandarin Orange immediately.
See more: Mandarin Orange → See more: Anthracnose →

Sources & References