Question

A widely but periodically occurring plant disease is :

• A. Endemic
• B. Epidemic
• C. Sporadic
• D. Epiphytotic

Answer 1

The correct option is D Epiphytotic

Epiphytotic disease is also called mahamari, which is occur widely in virulent state. e.g., Late blight of potato, rust of wheat, red root of sugarcane, downy and powery mildews. The pathogen of these diseases is more or less constantly present but favourable environment occurs for a short period (periodically).

So, the correct answer is ' Epiphytotic'.