A common disease of onion is? by Sunday | Jul 5 | Agricultural Science WAEC | 0 comments A. leaf spot B. root knot C. leaf blight D. twister E. mosaic Correct Answer: Option E – mosaic Users Also Read These:State the level of organisation of each of the…The disease caused by the bacterium Bacillus…What is the level of organization of an onion bulb?In animal production, disease-causing organisms are…The structure that is common in the embryos of…