Root-knot disease in tomatoes is caused by? by Sunday | Jul 4 | Agricultural Science WAEC | 0 comments A. virus B. nematode C. bactrium D. fungus Correct Answer: Option B – nematode Users Also Read These:Foot and mouth disease is caused by a?Gummosis disease of citrus is caused by?The disease caused by the bacterium Bacillus…Foot and mouth disease in sheep is caused by a?The pox disease in livestock are caused by?