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Wild celery > Brown blotch
Why is My Wild celery Developing Brown Spots?
Wild celery, also known as Celery
Brown spot is a disease that primarily affects Wild celery, leading to significant yield loss. It is caused by the fungus Bipolaris oryzae and manifests in defined brown leaf spots, which can result in the eventual death of the plant.

Symptom Analysis

Brown spot presents as small, oval or round brown spots on Wild celery's leaves. These spots enlarge over time and can lead to leaf death. In severe cases, the disease can kill the entire plant.
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What Causes Brown blotch Disease on Wild celery?

Bipolaris oryzae
This fungus is primarily responsible for the disease. It penetrates Wild celery's leaf tissue and exploits the plant's nutrients.
Humid Conditions
Brown spot thrives in high humidity, which favors the germination of the fungus and its spread between plants.
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How to Treat Brown blotch Disease on Wild celery?

Non pesticide
Removal of infected plants: Discard heavily infested plants to prevent the spread of the fungus to healthy plants.

Proper plant spacing: Ensure adequate spacing during planting to reduce humidity and limit disease spread.
Pesticide
Fungicide application: Use a broad-spectrum fungicide to control and prevent the spread of the disease.

How to Prevent Brown blotch on Wild celery?

Crop rotation
Rotate Wild celery with non-host crops to reduce fungus levels in the soil.
Resistant varieties
Plant varieties resistant to Brown spot to naturally limit the disease.
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When is Brown blotch Most Active Period on Wild celery?

Brown spot is most active during humid, rainy seasons as the conditions facilitate spore germination, spread, and fungal penetration into plant tissue.

Infectivity

Brown spot is highly infectious as the causal fungus spreads quickly especially under favorable conditions.

Lethality

Brown spot can be moderately lethal. If left untreated, severe infection can result in complete plant death.

FAQs on Wild Celery

Can Brown spot spread from plant to plant?
Yes, Brown spot can spread from one plant to another, primarily through spores carried by the wind, tools or rain splash.
How much yield loss can occur due to Brown spot?
In severe cases, yield loss can reach up to 50% if Brown spot is not controlled.
What kind of fungicide can I use for Brown spot?
A broad-spectrum fungicide can be effective against Brown spot.
Can Brown spot infect other types of plants?
Though its primary host is Wild celery, Brown spot can infect other types of plants, though less frequently.
How can I prevent Brown spot?
Preventative measures include using resistant plant varieties, implementing proper crop rotation, and maintaining good field hygiene.
Is it safe to eat Wild celery with Brown spot?
Though it's not harmful to human health, infected parts of Wild celery may have a bitter taste and are generally unappetizing.
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