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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Oryctes monoceros trapping with synthetic pheromone and palm material in ivory coast
Journal of Chemical Ecology, Volume 32, No. 8, Year 2006
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Description
Oryctes monoceros is the most serious pest in coconut plantations, causing up to 40% damage in tropical Africa, especially in Ivory Coast. With a view to reducing pest populations by olfactory trapping, field trials were carried out to assess the efficiency of a synthetic aggregation pheromone: ethyl 4-methyloctanoate (1), 4-methyloctanoic acid (2), a related volatile produced by males, and decaying palm material, either oil palm empty fruit bunches (EFB) or pieces of coconut wood (CW) of various ages. Vertical polyvinyl chloride tube traps (2 × 0.16 m with two openings in the upper half), embedded in the soil, were more efficient than 30-L pail traps 1.5 m above ground. EFB, which were inactive alone, synergized captures with synthetic pheromone. CW was more effective than EFB in comparative trials. Compound 2 did not catch any beetles when assessed with EFB, and reduced catches by 1 + EFB when tested at >10% with the pheromone. Trapping over 6 mo in 2002 and 2003 in a 19-ha coconut plot inside a 4,000-ha oil palm estate reduced damage from 3.8% in 2001 to 0.5% in 2002, then to 0.2% in 2003. Damage was 0.0% in 2004 with routine trapping using 32 traps, which caught 3369 beetles in 9 mo. The results are discussed in relation to other Dynastid palm pests and coconut protection in Ivory Coast. © Springer Science + Business Media, Inc. 2006.
Authors & Co-Authors
Allou, K.
Cote D'ivoire, Abidjan
Centre National de Recherche Agronomique Abidjan
Morin, J. P.
France, Paris
Cirad
Kouassi, Philippe
Cote D'ivoire, Abidjan
Université de Cocody-abidjan
N'Klo, François Hala
Cote D'ivoire, Abidjan
Centre National de Recherche Agronomique Abidjan
Rochat, Didier
France, Versailles
Physiologie de L'insecte Signalisation et Communication
Statistics
Citations: 34
Authors: 5
Affiliations: 4
Identifiers
Doi:
10.1007/s10886-006-9106-z
ISSN:
00980331
e-ISSN:
15731561
Study Locations
Ivory Coast