Igwe, David O. http://orcid.org/0000-0001-7560-4173
Afiukwa, Celestine A.
Acquaah, George
Ude, George N.
Article History
Received: 19 February 2019
Accepted: 24 September 2019
First Online: 16 October 2019
Ethics approval and consent to participate
: Consent was obtained from farmers before entering into their individual farms for sample collection.
: Not applicable.
: The authors declare that they have no competing interests.