When disease spreads to the whole of plants, it is termed as

A. Localised

B. Systemic

C. Endemic

D. Sporadic

Answer: Option B

Solution(By Examveda Team)

When a disease spreads to the whole of plants, it is termed Systemic.
Systemic symptoms are those involving the reaction of a greater part or all of the plant, such as wilting, yellowing and dwarfing.
In this, the pathogen spreads throughout the plant body and is associated with almost every stage of the plant's life cycle.