Biocontrol Science and Technology (2006) 16, 49-60

John J. Muturi, Adele J. Ngi-Song, Jones M. Mueke, Mamoudou Sétamou, Fritz Schulthess and Nanqing Jiang (2006)
Multiparasitism by the pupal parasitoids, Xanthopimpla stemmator (Hymenoptera: Ichneumonidae) and Pediobius furvus (Hymenoptera: Eulophidae) on two African cereal stemborers, Chilo partellus (Lepidoptera: Crambidae) and Busseola fusca (Lepidoptera: Noctuidae)
Biocontrol Science and Technology 16 (1), 49-60
Abstract: The outcome of multiparasitism by two pupal parasitoids, the exotic solitary ichneumonid Xanthopimpla stemmator and the indigenous gregarious eulophid Pediobius furvus, was studied using the invasive crambid stem borer Chilo partellus and the indigenous noctuid Busseola fusca as hosts. Two parasitism sequences were observed, where X. stemmator oviposited before P. furvus, and vice versa. In addition, the effect of time between first and second parasitism on parasitoid emergence, development, sex ratio, and number of offspring was assessed. For most treatments, time interval between parasitism had no significant effect on the percentage if pupae producing either P. furvus or X. stemmator. In general, X. stemmator outcompeted P. furvus irrespective of the order of oviposition, time interval between ovipositions and host species. Further studies, especially on host finding capacity of the two parasitoid species are required to determine the competitiveness of the two species under field conditions.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Mamoudou Sétamou, Fritz Schulthess, Adele J. Ngi-Song, Nanqing Jiang

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Chilo partellus
	Busseola fusca
Xanthopimpla stemmator (parasitoid)	Chilo partellus
Xanthopimpla stemmator (parasitoid)	Busseola fusca
Pediobius furvus (parasitoid)	Chilo partellus
Pediobius furvus (parasitoid)	Busseola fusca