Report on Spermophagus niger Motschulsky, 1866 (Coleoptera: Chrysomelidae: Bruchinae: Amblycerini) infesting the seeds of roselle, Hibiscus sabdariffa L. (Malvaceae) during post-harvest storage in Burkina Faso

Sanon, A and Koussoube, J C and Ba, M N and Dabire-Binso, L C and Sembène, M (2017) Report on Spermophagus niger Motschulsky, 1866 (Coleoptera: Chrysomelidae: Bruchinae: Amblycerini) infesting the seeds of roselle, Hibiscus sabdariffa L. (Malvaceae) during post-harvest storage in Burkina Faso. Journal of Stored Products Research, 72. pp. 64-67. ISSN 0022474X

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Abstract

This paper reports the presence and characteristics of the bruchid Spermophagus niger Motschulsky as a major pest of roselle (Hibiscus sabdariffa L.) seeds during post-harvest storage in Burkina Faso. Samples of roselle seeds collected in farmers granaries at three locations in Burkina Faso at the beginning of crop storage were brought to the laboratory and held for 2 months. All seed samples were infested with varying levels of S. niger, though samples from Tougan and Dedougou were more highly infested than those from Ouagadougou. Infested seeds generally had only one insect emergence hole, with seed perforation rates ranging from 1.8% to 4%. Insect rearing in the laboratory provided an opportunity for a clearer discrimination of sexual dimorphism and a better morphological description of the species. Males were smaller and weighed less than females. Post-embryonic development, which took place entirely within the seed, included four larval instars and one pupal stage; these stages are common in the subfamily Bruchinae. Our preliminary observations will enable a better understanding of this previously little-known insect pest. Furthermore, these results offer baseline data for further into appropriate post-harvest management of roselle in West Africa.

Item Type: Article
Divisions: Research Program : West & Central Africa
CRP: UNSPECIFIED
Uncontrolled Keywords: Hibiscus sabdariffa, Spermophagus niger, Insect morphology, Post-embryonic development, Post-harvest management, Spermophagus niger Motschulsky, Burkina Faso, Seeds
Subjects: Others > Pest Management
Depositing User: Mr Ramesh K
Date Deposited: 16 Nov 2017 11:08
Last Modified: 16 Nov 2017 11:08
URI: http://oar.icrisat.org/id/eprint/10285
Official URL: http://dx.doi.org/10.1016/j.jspr.2017.04.002
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: Technicians from the national research institute (INERA) and Agriculture department in Burkina Faso are thanked for providing with roselle seed samples. This research did not receive any specific grant from funding agencies in the public, commercial, or not-forprofit sectors.
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