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Culture maintenance and mass production of exotic phytoseiids

Published online by Cambridge University Press:  19 September 2011

D. D. Friese ,
B. Megevand  and
J. S. Yaninek
D. D. Friese
Affiliation:
International Institute of Tropical Agriculture (IITA), Oyo Road, PMB 5320, Ibadan, Nigeria
B. Megevand
Affiliation:
International Institute of Tropical Agriculture (IITA), Oyo Road, PMB 5320, Ibadan, Nigeria
J. S. Yaninek
Affiliation:
International Institute of Tropical Agriculture (IITA), Oyo Road, PMB 5320, Ibadan, Nigeria
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Abstract

Culture and mass production of exotic phytoseiid predators is one component of a classical biological control programme directed toward the cassava green mite (CGM), Mononychellus tanajoa, in Africa. Five species of phytoseiid predators are currently maintained at the International Institute of Tropical Agriculture, Euseius concordis, Galendromus annectens, Neoseiulus anonymus, N. idaeus and Typhlodromalus limonicus. CGM from cassava and two-spotted spider mites, Tetranychus urticae, reared on mucuna, peanut and cowpea plants, are harvested as phytoseiid food using a mite brushing machine or a water based mite separator unit. Stock maintenance cultures are initiated at regular intervals, have a definite productive period and are used as a source for mass-rearing phytoseiids for release in Africa. Mass-rearing techniques utilizing artificial substrates, detached leaves and entire plants, in the insectary and field, are being developed.

Résumé

L'élevage et la production de masse de phytoséiides prédateurs exotiques est l'une des composantes d'un programme de lutte biologique classique contre l'acarien vert du manioc, Mononychellus tanajoa, en Afrique. Cinq espèces de phytoséiides prédateurs sont actuellement élevées à l'Iita: Euseius concordis, Galendromus annectens, Neoseiulus anonymus, N. idaeus et Typhlodromalus limonicus. Les acariens verts infestant les plants de manioc et Tetranychus urticae élevé sur mucuna, sur l'arachide et le niébé sont récoltés en vue d'alimenter des phytoséiides à l'aide d'un dispositif à brosses ou d'un appareil opérant par séparation en milieu aqueux. Les élevages de souche sont régulièrement renouvelés. Ils ont une période de production bien définie et sont utilisés pour l'élevage de masse des phytoséiides lâchés en Afrique. Des techniques d'élevage de masse sur substrats artificiels, feuilles détachées et plantes entières sont en voie d'élaboration en insectarium et au champ.

Keywords

Biological controlexotic phytoseiidsmass productionMononychellus tanajoa.Lutte biologiquephytoséiides exotiquesproduction de masseMononychellus tanajoa.
Type
Symposium XI: Africa-wide Biological Control Programme of Cassava Pests
Information
International Journal of Tropical Insect Science , Volume 8 , Issue 4-5-6: Recent Advances in Research on Tropical Entomology , December 1987 , pp. 875 - 878
Copyright
Copyright © ICIPE 1987

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References

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