![]() The late blight of potato tuber is a darker brown, sometimes a purplish patch on the tuber surface marks as a symptom of tuber infection. infestans generates sporangia and sporangiophores mostly on top of diseased tissue in damp environments and the whitish sporulation that results can be observed along the edges of lesions on the abaxial (bottom) regions of leaflets. During damp environments, a pale green border typically envelopes the necrotic area just on the top portion, while whitish spore-bearing mould forms all around lesions on the bottom side. On leaves, late blight symptoms emerge as irregularly shaped dark dots that expand as the illness progresses. The blight is also found in potato leaves. Late blight of potato is caused by a fungus known as Phytophthora infestans, the blight symptoms are found in both potato stem and tuber. The article discusses the causes of the late blight of potato which includes blight meaning, causes and symptoms, the article also discusses the management techniques of the late blight of potato. In epidemic years, declines in potato crops can reach as high as 80%. The Late blight of potato is caused by the fungus Phytophthora infestans, which is now the most common crop pathogen, which can cause crop failure in a short amount of time if effective control precautions are not taken. Before discussing the details and the blight meaning let us look into the causative agents. The fungus in the soil is killed by dryness and high temperatures. In the plains, it is followed by hot summer months. In India, the main potato-growing season is winter. It can be found in potato-growing regions around the world. Late blight is a deadly fungus that damages potatoes. ![]()
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