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Common daisy > Dark blotch
What Causes Dark Blotch on Common daisy Leaves?
Common daisy, also known as English daisy, Meadow daisy, Bruisewort
Dark blotch is a disease that affects Common daisy, leading to discolored, necrotic patches on its petals, inhibiting growth and potentially compromising plant health.

Symptom Analysis

Symptoms on Common daisy include dark, irregular lesions on petals and foliage, possibly leading to premature leaf drop or reduced flowering.
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What Causes Dark blotch Disease on Common daisy?

Fungal pathogens
Specific fungi, such as Alternaria species, are commonly responsible for dark blotch, infecting the leaves and stems.
Environmental conditions
High humidity and prolonged wetness favour the development and spread of dark blotch.
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How to Treat Dark blotch Disease on Common daisy?

Non pesticide
Pruning: Remove and destroy infected parts of Common daisy to reduce disease spread.

Improved air circulation: Space plants adequately to enhance air flow and dry foliage quicker.

Watering practices: Water Common daisy at the base to avoid wetting foliage and reduce humidity.
Pesticide
Fungicide application: Apply approved fungicides that target the specific pathogens causing dark blotch on Common daisy.

How to Prevent Dark blotch on Common daisy?

Cultural practices
Maintain good sanitation by removing debris, avoiding overhead watering, and allowing space for air circulation.
Resistant varieties
Choose disease-resistant varieties of Common daisy to maintain a healthy garden.
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When is Dark blotch Most Active Period on Common daisy?

Dark blotch is most active during wet, cool seasons when humidity is high, creating optimal conditions for fungal growth.

Infectivity

The disease can spread between plants under suitable conditions but is containable with management.

Lethality

Dark blotch can weaken Common daisy, but is rarely fatal if appropriately managed.

FAQs on Common Daisy

Can dark blotch kill Common daisy?
While dark blotch is not usually lethal, if left untreated, it can significantly stress the plant and lead to its decline.
How do I recognize dark blotch on Common daisy?
Look for dark patches on petals and leaves, which can expand and coalesce over time.
Is dark blotch contagious to other plants?
The disease can spread to nearby plants of the same species under favourable conditions, especially those in close proximity.
When should I apply fungicide to my Common daisy plants?
Apply fungicides preventatively or at the first signs of disease, following label directions for proper use.
What kind of environment contributes to dark blotch on Common daisy?
Wet, cool, and high humidity conditions are conducive to the development of dark blotch.
Can I prevent dark blotch on Common daisy without using chemicals?
Yes, by improving air circulation, using proper watering techniques, and practicing good sanitation, you can reduce the risk of dark blotch.
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