The characteristic symptoms of mosaic disease of crops is usually observed on? by Sunday | Jul 4 | Agricultural Science WAEC | 0 comments A. roots B. leaves C. stems D. fruits Correct Answer: Option B – leaves Users Also Read These:BIO 214 Theory Questions: Plant Disease Pathogens…STB 316 Theory Questions: Onchocerciasis Symptoms,…Chlorosis observed along the veins of leaves is a…In poultry; cyclic movement and shaking of head are…The progress of the disease is _________; it spreads…