Funding for this research was provided by:
West African Agriculture Productivity Program (PPAAO/WAAPP-1C, Crédit 4877 NE)
Text and Data Mining valid from 2019-08-13
Received: 28 February 2019
Accepted: 28 July 2019
First Online: 13 August 2019
Change Date: 9 September 2019
Change Type: Correction
Change Details: Please note that following publication of the original article , Figs. 4, 5 and 6 in the article have been updated to remove oblique lines that were erroneously rendered in the figures.
Ethics approval and consent to participate
: A verbal agreement was obtained from traditional and local authorities, and the population at large prior to administering the questionnaires. The presentation of the study objectives made this easier.
: Not applicable.
: The authors declare that they have no competing interests.