The causal organism of damping-oil disease of okra is a? by Sunday | Jul 8 | Agricultural Science WAEC | 0 comments A. bacterium B. virus C. nematode D. aphid E. fungus Correct Answer: Option E – fungus Users Also Read These:Foot and mouth disease in sheep is caused by a?An organism that habours another organism is referred to as?The study of an individual organism or a single…The disease caused by the bacterium Bacillus…The causal organism of anthrax in farm animals is known as?