Question

Which of the following statements about extent of infection and perpetuation of pathogen are correct?
(A). Disease which is confined to a particular part or organ is known as systemic disease.
(B). Arhar wilt is a soil-borne disease
(C). Smut disease of cereals are seed-borne
(D). Mildew and rusts are air-borne

• A. (A), (C) and (D) only.
• B. (B) and (D) only.
• C. (A), (B) and (D) only.
• D. (B), (C) and (D) only.

Hint:

Knowing disease spread helps in creating effective control strategies.

Answer 1

The Correct Option is D

Arhar wilt is soil-borne, cereal smut diseases are seed-borne, and mildew and rusts are air-borne.