Multiple choice

Blank-shank of tobacco is caused by which of the following organisms?

  1. Rhizoctonia

  2. Phytophthora nicotianae

  3. Fusarium

  4. Pythium aphanidermatum

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Blank-shank or black shank of tobacco is caused by the oomycete Phytophthora nicotianae. It is a serious disease affecting tobacco plants, causing stem and root rot.