Calyx fluid proteins of two<i>Cotesia sesamiae</i>(Cameron) (Hymenoptera: Braconidae) biotypes in Kenya: implications to biological control of the stem borer<i>Busseola fusca</i>(Fuller) (Lepidoptera: Noctuidae)

Gitau, Catherine W.; Dupas, Stéphane; Ngi-Song, Adèle J.; Mbugi, J.P.; Schulthess, Fritz

doi:10.1080/00379271.2006.10697476

Cited by 14 publications

(6 citation statements)

References 30 publications

(30 reference statements)

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“…In Kenya, C. sesamiae exists as two biotypes that differ in their ability to parasitize B. fusca . Cotesia sesamiae from western Kenya completes development in B. fusca larvae, hence it is virulent (Gitau et al. 2006), while in the coastal C. sesamiae biotype the eggs that are oviposited are encapsulated by haemocytes in B. fusca larvae, and hence it is avirulent.…”

Section: Discussionmentioning

confidence: 99%

Lepidopteran cereal stemborers and associated natural enemies on maize and wild grass hosts in Cameroon

Ndemah

Schulthess

Rü

et al. 2007

J Applied Entomology

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In Cameroon, the noctuid Busseola fusca is the most important pest of maize. The braconid Cotesia sesamiae, which is the most common larval parasitoid of noctuid stemborers in eastern Africa, was absent on B. fusca attacking maize. Thus, it is planned to introduce several strains of the parasitoid from Kenya. Pre-release surveys were undertaken in major maize growing areas to catalogue stemborer species, and larval and pupal parasitoids on maize and four wild host plant species. On maize, B. fusca was the predominant borer in all ecozones except for the lowland coastal forest, usually accounting for 60-99%, followed by the pyralid Eldana saccharina in the forest zone and the crambid Chilo sp. in the mid-altitudes. Contrary to what was reported before, the noctuid Poeonoma serrata -and not B. fusca -was the predominant borer on elephant grass, constituting 70-96% of all borers. On wild sorghum in the forest zone, the noctuid Sesamia poephaga was the most abundant species, while on Panicum sp., Chilo sp. predominated. On Setaria megaphylla in the forest zone, Chilo sp. was the most abundant species followed by Busseola quadrata. Busseola fusca was scarce on all wild grass species, indicating that previous reports on the predominance of this pest species on wild host plants were the result of misidentifications. Three tachinid and 16 hymenopteran parasitoids were obtained, most of them from B. fusca and P. serrata, on maize and Pennisetum purpureum respectively. C. sesamiae was scarce and never recovered from B. fusca on maize. In view of the new findings, acceptability and suitability studies involving the different stemborer species identified from wild plant hosts are required to determine if they will form a reproductive sink or perennate C. sesamiae populations during the off-season when maize is scarce and B. fusca is diapausing.

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Section: Discussionmentioning

confidence: 99%

Lepidopteran cereal stemborers and associated natural enemies on maize and wild grass hosts in Cameroon

Ndemah

Schulthess

Rü

et al. 2007

J Applied Entomology

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“…In Kenya, C. sesamiae exists as two biotypes that differ in their ability to parasitise B. fusca. Cotesia sesamiae from western Kenya completes development in B. fusca larvae, while in the coastal C. sesamiae biotype the eggs that are oviposited are encapsulated by haemocytes in B. fusca larvae (Gitau, Dupas, Ngi-Song, Mbugi, and Schulthess 2006). It was suggested that this is due to differences in polyDNA viruses (PDV) (Dupas, Gitau, and Silvain 2006;Gitau et al 2006) that are injected together with the egg at oviposition.…”

Section: Reproductive Compatibility Of Several East and West African mentioning

confidence: 97%

“…Cotesia sesamiae from western Kenya completes development in B. fusca larvae, while in the coastal C. sesamiae biotype the eggs that are oviposited are encapsulated by haemocytes in B. fusca larvae (Gitau, Dupas, Ngi-Song, Mbugi, and Schulthess 2006). It was suggested that this is due to differences in polyDNA viruses (PDV) (Dupas, Gitau, and Silvain 2006;Gitau et al 2006) that are injected together with the egg at oviposition. The PDV genes are expressed in the host larvae, causing the destruction of haemocytes, thus preventing encapsulation of the eggs (Beckage and Gelman 2004).…”

Section: Reproductive Compatibility Of Several East and West African mentioning

confidence: 97%

Reproductive compatibility of several East and West AfricanCotesia sesamiae(Hymenoptera: Braconidae) populations and their crosses and backcrosses usingSesamia calamistis(Lepidoptera: Noctuidae) as the host

Gounou

Chabi-Olaye

Poehling³

et al. 2008

Biocontrol Science and Technology

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“…An important measure of both host resistance and parasitoid virulence is the ability of a host to kill parasitoid eggs or larvae via mechanisms such as encapsulation. In a given species, this ability may vary geographically [ 4 , 5 ] and depend on a degree of specialization [ 6 , 7 ]. It varies as a response to stress [ 8 , 9 ] and in association with endosymbionts [ 10 , 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Variation in a Host–Parasitoid Interaction across Independent Populations

Nouhuys

Niemikapee

Hanski

2012

Insects

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Antagonistic relationships between parasitoids and their insect hosts involve multiple traits and are shaped by their ecological and evolutionary context. The parasitoid wasp Cotesia melitaearum and its host butterfly Melitaea cinxia occur in several locations around the Baltic sea, with differences in landscape structure, population sizes and the histories of the populations. We compared the virulence of the parasitoid and the susceptibility of the host from five populations in a reciprocal transplant-style experiment using the progeny of five independent host and parasitoid individuals from each population. The host populations showed significant differences in the rate of encapsulation and parasitoid development rate. The parasitoid populations differed in brood size, development rate, pupal size and adult longevity. Some trait differences depended on specific host-parasitoid combinations, but neither species performed systematically better or worse in experiments involving local versus non-local populations of the other species. Furthermore, individuals from host populations with the most recent common ancestry did not perform alike, and there was no negative effect due to a history of inbreeding in the parasitoid. The complex pattern of variation in the traits related to the vulnerability of the host and the ability of the parasitoid to exploit the host may reflect multiple functions of the traits that would hinder simple local adaptation.

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Calyx fluid proteins of twoCotesia sesamiae(Cameron) (Hymenoptera: Braconidae) biotypes in Kenya: implications to biological control of the stem borerBusseola fusca(Fuller) (Lepidoptera: Noctuidae)

Cited by 14 publications

References 30 publications

Lepidopteran cereal stemborers and associated natural enemies on maize and wild grass hosts in Cameroon

Lepidopteran cereal stemborers and associated natural enemies on maize and wild grass hosts in Cameroon

Reproductive compatibility of several East and West AfricanCotesia sesamiae(Hymenoptera: Braconidae) populations and their crosses and backcrosses usingSesamia calamistis(Lepidoptera: Noctuidae) as the host

Variation in a Host–Parasitoid Interaction across Independent Populations

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