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Common tansy > Spots
Why Does Common tansy Get Spotty Leaves?
Common tansy, also known as Golden buttons, Cow bitter
Spots is a disease that presents as discolored lesions on Common tansy's foliage, potentially reducing photosynthetic activity and overall vigor. Management is vital for the plant's health and productivity.

Symptom Analysis

On Common tansy, the disease manifests as circular to irregular-shaped brown or black spots on leaves, potentially leading to defoliation and decreased plant vigor.
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What Causes Spots Disease on Common tansy?

Fungal pathogens
The spots on Common tansy are primarily caused by fungal infections that thrive in moist conditions.
Environmental stress
Suboptimal growing conditions, including poor air circulation and waterlogged soil, can exacerbate the disease.
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How to Treat Spots Disease on Common tansy?

Non pesticide
Pruning: Remove and destroy infected parts of the plant to reduce disease spread.

Improved air circulation: Space plants adequately and control weeds to promote drying and reduce fungal growth.
Pesticide
Fungicide application: Apply appropriate fungicides according to local guidelines to control the fungal pathogens.

How to Prevent Spots on Common tansy?

Crop rotation
In multi-crop systems, rotate crops to break disease cycles and reduce pathogen buildup in the soil.
Resistant varieties
Use resistant Common tansy varieties, if available, to minimize disease impact.
Adequate watering
Water at the base of the plant to minimize leaf wetness and prevent fungal spore germination.
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When is Spots Most Active Period on Common tansy?

The disease is most active during wet, humid conditions as these environments are conducive to fungal growth and spore dissemination.

Infectivity

The disease can spread between plants but is usually contained with proper care.

Lethality

With proper treatment, the lethality is low and Common tansy can recover.

FAQs on Common Tansy

Can 'Spots' spread to other nearby plants?
Yes, 'Spots' can spread to other plants if conditions are favorable for the pathogen, particularly in crowded gardens with high humidity.
Will 'Spots' kill my Common tansy?
Spots' has a low lethality rate if managed properly. It can weaken Common tansy but is unlikely to kill it when treated in time.
Are there any non-chemical ways to manage 'Spots' on Common tansy?
Yes, non-chemical management includes removing infected areas, improving circulation, and using resistant varieties.
How often should I apply fungicide to treat 'Spots' on Common tansy?
Fungicide application should be based on the severity of the infection and according to product instructions and local extension service guidelines.
Can 'Spots' affect the blooming of Common tansy?
Severe infections can lead to reduced plant vigor, possibly impacting the blooming of Common tansy.
Is it safe to compost leaves of Common tansy affected by 'Spots'?
It is not recommended to compost diseased plant material as it can harbor pathogens and spread the disease.
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