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<p><b>New page</b></p><div>[[File:Alternaria_radicina_on_Daucus_carota.jpg|thumb|Alternaria_radicina_on_Daucus_carota]] '''Alternaria radicina'''<br />
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'''Alternaria radicina''' is a species of fungus in the genus [[Alternaria]]. It is commonly known as the carrot [[black rot]] fungus due to its association with causing black rot disease in [[carrot]] plants. This fungal pathogen primarily affects the roots of carrot plants, leading to symptoms such as dark lesions, rotting, and wilting of the plant.<br />
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== Description ==<br />
[[Alternaria radicina]] is a filamentous fungus that produces dark-colored spores. These spores are dispersed through the air and can infect carrot plants through wounds or natural openings in the roots. Once inside the plant tissue, the fungus grows and spreads, causing damage to the root system and inhibiting the plant's ability to absorb nutrients and water.<br />
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== Symptoms ==<br />
Infected carrot plants exhibit symptoms of black rot disease caused by [[Alternaria radicina]]. These symptoms include dark lesions on the roots, rotting of the root tissue, and wilting of the plant. In severe cases, the entire plant may die due to the extensive damage caused by the fungus.<br />
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== Management ==<br />
To manage black rot disease caused by [[Alternaria radicina]], several strategies can be employed. These include practicing crop rotation, ensuring proper spacing between plants to promote air circulation, and avoiding overhead irrigation to reduce moisture on the foliage. Fungicides may also be used to control the spread of the fungus in commercial carrot production.<br />
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== Prevention ==<br />
Preventing the introduction and spread of [[Alternaria radicina]] is crucial in maintaining the health of carrot crops. Farmers can implement strict sanitation practices, such as removing and destroying infected plant material, to prevent the fungus from spreading to healthy plants. Additionally, planting disease-resistant carrot varieties can help reduce the risk of infection by this pathogen.<br />
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== References ==<br />
{{Reflist}}<br />
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[[Category:Fungal plant pathogens]]<br />
[[Category:Carrot diseases]]<br />
[[Category:Plant pathology]]<br />
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