Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 525614
Title Étude analytique de l'épidémiologie du scolyte des graines de café, Stephanoderes hampei Ferr., en Côte d'Ivoire
Author(s) Ticheler, J.H.G.
Source University. Promotor(en): J. de Wilde. - Wageningen : Veenman - 49
Publication type Dissertation, internally prepared
Publication year 1961
Keyword(s) insecten - plantenplagen - coffea - koffie - ivoorkust - insects - plant pests - coffee - cote d'ivoire
Categories Epidemiology of Plant Pests and Diseases / Agricultural Entomology
Abstract After discussion of the distribution of the insect and of its taxonomic classification, demonstrating the synonymy of S. hampei (Ferr.) and S. coffeae Haged., an attempt was made to analyse the factors playing a role in the epidemiology of the pest.

Of climatic factors temperature favoured speed of development, slowing it down when the berries ripen and accelerating it after harvest, thus leading to a rapid exhaustion of available food supply. The rainfall distribution determined the growth cycle of the coffee berries and the relative humidity affected the incidence of fungal parasites of the beetle.

The quantity of food available provided for the yearly fluctuations in attack. The suitability of the berries for food depended on their maturity, which could be distinguished by the beetle. Characteristics of the berries provided possible resistance factors.

Of the predators man was the most important. Regular picking prevented the outbreak of an epidemic. The bionomics and importance of a hitherto unknown Bethylid parasite of the beetle, Cephalonomia stephanoderi Betrem, were given. The flight muscle degeneration in the adult female beetle was described.

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