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:Newcastle disease is caused by?An inventor of a new machine for canning tomatoes…Swollen shoot disease of cocoa is caused by?The pox disease in livestock are caused by?Gummosis disease of citrus is caused by?