Een en ander over zuivelbereiding in Nederland : openbare voordracht gehouden ter opening van de lessen in de zuivelbere...
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...
The mutual relation between the coffee-twig beetle, an ambrosia beetle, and the coffee plant was analysed as an example of the relation between insect and host plant. By boring passages in the twigs of the coffee plant, the beetle killed the twigs. Control was hindered by the feeding of the beetle only on a fungus, Ambrosiella xylebori Brader, whic...
INTRODUCTIONThe discovery of Cephalonomia stephanoderis BETREM, a new parasite of the coffee berry borer Hypothenemus hampei FERR. (syn. Stephanoderes hampei Ferr.), seemed to open new prospects for biological control of the pest.However the phenomenon that C.stephanoderis uses H. hampei both as Prey and host for oviposition made us suppose that t...