Multiple choice

Which of the following viral and viroidal diseases of citrus is/are caused by CEVd?

P. Psorosis Q. Blind pocket R. Scalybutt S. Concave gum

  1. Only P

  2. Only Q

  3. Only R

  4. Only S

  5. Both Q and S
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Scalybutt (citrus exocortis) is a disease of citrus plants, caused by the citrus exocortis viroid (CEVd). It can cause stunted growth and reduced yields in affected plants.

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