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Question
A widely but periodically occurring plant disease is
A widely but periodically occurring plant disease is
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Solution
The correct option is D Epiphytotic
Pathogens such as bacteria, fungi, viruses are responsible for numerous type of plant diseases and the study of diseases in plant populations is known as plant disease epidemiology. They are classified on the basis of mode of infection, symptoms, host plant, the organ they attack, occurrence and distribution. Epiphytotic is classified according to occurrence and distribution which is defined as a disease that occurs periodically in serve form involving a major area of crop. e.g. Rust, Late blight. So the correct answer is 'Epiphytotic'.
Pathogens such as bacteria, fungi, viruses are responsible for numerous type of plant diseases and the study of diseases in plant populations is known as plant disease epidemiology. They are classified on the basis of mode of infection, symptoms, host plant, the organ they attack, occurrence and distribution. Epiphytotic is classified according to occurrence and distribution which is defined as a disease that occurs periodically in serve form involving a major area of crop. e.g. Rust, Late blight.
So the correct answer is 'Epiphytotic'.
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