International Journal of Pest Management (2006) 52, 117-123

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Antoine Sanon, Zakaria Ilboudo, Clementine L.B. Dabire, Roger C.H. Nebie, Idrissa O. Dicko and Jean-Paul Monge (2006)
Effects of Hyptis spicigera Lam. (Labiatae) on the behaviour and development of Callosobruchus maculatus F. (Coleoptera: Bruchidae), a pest of stored cowpeas
International Journal of Pest Management 52 (2), 117-123
Abstract: The use of beni seed, Hyptis spicigera Lam. (Labiatae), to protect stored cowpeas from bruchid attacks is a widespread practice in West Africa. More knowledge about its actual effects on storage pests is needed to enhance its effectiveness. In this laboratory study, repellent and lethal effects of powder and essential oil from H. spicigera on Callosobruchus maculatus, the main pest of stored cowpeas, were studied. Repellency tests undertaken with a Y-tube olfactometer showed that powder was repulsive for C. maculatus adults. On the other hand, this product had no insecticidal activity. Essential oil had a dose-dependent insecticidal effect while sublethal doses repelled the adults. Both products reduced oviposition by 15-19 and 7-78% according to the doses of powder and essential oil, respectively, tested. Similarly, egg viability decreased with increasing doses of powder and essential oil used in a range of 40-75 and 24-86%, respectively. Only essential oil was lethal to C. maculatus larvae developing within cowpea seeds; however, oil activity was age-dependent, younger instars being more susceptible. These results are discussed with a view of controlling C. maculatus populations in stored cowpeas.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Antoine Sanon, Clémentine Loulè Binso Dabire, Jean Paul Monge

Research topic(s) for pests/diseases/weeds:
control - general

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Callosobruchus maculatus Stored legumes
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