Received: 16 February 2019
Accepted: 29 May 2019
First Online: 17 June 2019
Ethics approval and consent to participate
: As at the time this research was conducted, to the best of our knowledge, there was no committee both at national and institutional level on research ethics involving insect pests. However, all data were collected under previous consent of each participant.
: Not applicable.
: The authors declare that they have no competing interests.
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