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Biological control of the coffee berry borer for Mexico/IDRC CIBC No.646 Record of research: annual report 1985

by Murphy, S.T; Nang'ayo, F.L; Kenya Agricultural Research Institute, Nairobi (Kenia). Agricultural Research Department.
Publisher: Nairobi (Kenia) 1989Description: p. 74-75.Subject(s): COFFEA CANEPHORA | COFFEA ARABICA | HYPOTHENEMUS HAMPEI | INSECTOS DEPREDADORES DE LOS FRUTOS | CONTROL BIOLOGICO | PROROPS NASUTA | CICLO VITAL | MEXICO | COFFEA CANEPHORA | COFFEA ARABICA | HYPOTHENEMUS HAMPEI | FRUIT DAMAGING INSECTS | BIOLOGICAL CONTROL | LIFE CYCLE | MEXICO | COFFEA CANEPHORA | COFFEA ARABICA | HYPOTHENEMUS HAMPEI | INSECTE DEPREDATEUR DES FRUITS | LUTTE BIOLOGIQUE | CYCLE DE DEVELOPPEMENT | MEXIQUESummary: During 1985 extensive surveys were conducted in Western Kenya to find and collect parasitoids of the coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera, Scolytidae). Although the borer was found to be common on Robusta coffee near Lake Victoria and on Arabica coffee in the adjacent highlands to the East (up to approximately 1600m), only one parasitoid, the bethylid Prorops nasuta Western, was recorded. A longterm study on the population ecology of P. nasuta was begun in August at the Coffee Research Sub-Station at Kisii to determine the degree to which this wasp regulates populations of the borer in Western Kenya. Life history studies on H. hampei and P. nasuta were conducted at the CIBC Muguga laboratories during the second half of the year and the information from these studies was used to establish cultures of the two insects. Further to this, experiments were begun to determine techniques of screening P. nasuta against coffee diseases, particularly leaf rust and berry disease. When suitable techniques have been found, the wasps will be quarantined at CIBC UK Station. It is expected that the first shipments of P. nasuta will be send during mid-1986 for screening in the UK
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During 1985 extensive surveys were conducted in Western Kenya to find and collect parasitoids of the coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera, Scolytidae). Although the borer was found to be common on Robusta coffee near Lake Victoria and on Arabica coffee in the adjacent highlands to the East (up to approximately 1600m), only one parasitoid, the bethylid Prorops nasuta Western, was recorded. A longterm study on the population ecology of P. nasuta was begun in August at the Coffee Research Sub-Station at Kisii to determine the degree to which this wasp regulates populations of the borer in Western Kenya. Life history studies on H. hampei and P. nasuta were conducted at the CIBC Muguga laboratories during the second half of the year and the information from these studies was used to establish cultures of the two insects. Further to this, experiments were begun to determine techniques of screening P. nasuta against coffee diseases, particularly leaf rust and berry disease. When suitable techniques have been found, the wasps will be quarantined at CIBC UK Station. It is expected that the first shipments of P. nasuta will be send during mid-1986 for screening in the UK

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