Enquête sur la répartition des tachninaires [Diptera: Tachnidae] prasitoïdes de la pyrale du maïsOstrinia nubilalis [Lepidoptera: Pyralidae] en France (1985–87)

Grenier, S.; Anglade, P.; Naibo, B.; Galichet, P.F.; Hawlitzky, Nicole

doi:10.1007/bf02375274

Cited by 8 publications

(18 citation statements)

References 6 publications

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“…These regions are located in two distinct geographical areas: one in south-western France, including Aquitaine and Midi-Pyrénées and the other in eastern France, including Alsace, Franche-Comté and Rhône-Alpes. According to Thompson and Parker [53], Faucher [55] and Grenier et al [87] maize cultivation was long restricted to these two areas, until the selection of new varieties of maize permitted its expansion in the 1950s (ii) intermediate regions geographically connected to ancestral regions . These include Bourgogne, Languedoc-Roussillon, Limousin, Lorraine, Provence-Alpes-Côte-d'Azur and Poitou-Charentes.…”

Section: Methodsmentioning

confidence: 99%

“…The area under this crop probably increased before the World War II and these areas were certainly colonized by ECB between 1930 and 1950 and (iii) newly colonized regions , including Auvergne, Bretagne, Centre, Champagne-Ardenne, Haute-Normandie, Ile-de-France, Pays de la Loire and Picardie. In these regions, maize was grown very rarely, if at all, before the 1950s [55], [87]. According to Thompson and Parker [53], the rare maize fields cultivated in Ile-de-France during the 1920s were free of ECB infestations.…”

Section: Methodsmentioning

confidence: 99%

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Changes in Parasitoid Communities Over Time and Space: A Historical Case Study of the Maize Pest Ostrinia nubilalis

et al. 2011

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Understanding the ways in which human environmental modifications affect biodiversity is a key challenge in conservation planning, pest control and evolutionary ecology. Parasitoid communities, particularly those associated with agricultural pests, may be susceptible to such modifications. We document here changes in the larval parasitoid communities of Ostrinia nubilalis — the main pest of maize — and its sibling species O. scapulalis, based on two historical datasets, one collected from 1921–1928 and the other from 2001–2005. Each of these datasets encompasses several years and large geographical areas and was based on several thousands/millions of host larvae. The 80-year interval between the two datasets was marked by a decrease in O. nubilalis parasitism to about two thirds its initial level, mostly due to a decrease in the rate of parasitism by hymenopterans. However, a well balanced loss and gain of species ensured that species richness remained stable. Conversely, O. scapulalis displayed stable rates of parasitism over this period, with a decline in the species richness of its parasitoid community. Rates of parasitism and species richness in regions colonized by O. nubilalis during the 1950s were one half to one third those in regions displaying long-term colonisation by this pest. During the recent human activity-driven expansion of its range, O. nubilalis has neither captured native parasitoids nor triggered parasite spill back or spill over.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Changes in Parasitoid Communities Over Time and Space: A Historical Case Study of the Maize Pest Ostrinia nubilalis

et al. 2011

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“…After 3 months, dead larvae were counted and discarded. The survivors were placed in diapause breaking conditions at 25 °C, in a 16:8 h light : dark (L:D) photoperiod, with a moistened piece of cotton (Grenier et al . 1990).…”

Section: Methodsmentioning

confidence: 99%

“…Although one or both species have regularly been detected in Europe (Thompson & Parker 1928; Eizaguirre et al . 1990; Grenier et al . 1990; Cagán et al .…”

Section: Introductionmentioning

confidence: 99%

Detection, identification and geographical distribution of European corn borer larval parasitoids using molecular markers

Agustí¹,

Bourguet

Spataro³

et al. 2005

Molecular Ecology

231

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Biological control requires specific tools for the accurate detection and identification of natural enemies, and to detect unusual variations in their density, which may follow changes in agricultural practices. Here we have developed specific molecular markers to detect Lydella thompsoni (Herting) and Pseudoperichaeta nigrolineata (Walker) (Diptera: Tachinidae) within the European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae). Primers amplifying fragments of the mitochondrial COI gene were designed following alignment of comparable sequences for a range of parasitoid and host species. Each of the primer pairs proved to be species specific to a tachinid species, amplifying DNA fragments of 191 and 91 bp in length for L. thompsoni and P. nigrolineata, respectively. This DNA-based technique allowed molecular evaluation of parasitism in O. nubilalis natural populations. In order to study the geographical distribution of both species in France, O. nubilalis diapausing larvae in maize stalks were collected from 12 locations over the whole country. The molecular evaluation of parasitism was compared with the traditional method of maintaining O. nubilalis populations in controlled conditions before breaking off the diapause. The percentage parasitism found in both species of tachinids was higher--approximately three times--using the molecular method, suggesting an underestimation by the traditional rearing protocol. Tachinid parasitism on O. nubilalis was not significantly different between geographical areas (south, central and north France) for both species. This study shows that molecular methods are very promising for the correct detection and identification of tachinid parasitoids in natural field populations.

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“…To update work done by Thompson & Parker (1928) and Parker et al (1929), a survey of tachinids was carded out by Grenier et al (1990). To update work done by Thompson & Parker (1928) and Parker et al (1929), a survey of tachinids was carded out by Grenier et al (1990).…”

mentioning

confidence: 99%

Reproductive characteristics ofPseudoperichaeta nigrolineata (Dipt., tachinidae), parasitoid ofOstrinia nubilalis (Lep., pyralidae)

et al. 1995

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Enquête sur la répartition des tachninaires [Diptera: Tachnidae] prasitoïdes de la pyrale du maïsOstrinia nubilalis [Lepidoptera: Pyralidae] en France (1985–87)

Cited by 8 publications

References 6 publications

Changes in Parasitoid Communities Over Time and Space: A Historical Case Study of the Maize Pest Ostrinia nubilalis

Changes in Parasitoid Communities Over Time and Space: A Historical Case Study of the Maize Pest Ostrinia nubilalis

Detection, identification and geographical distribution of European corn borer larval parasitoids using molecular markers

Reproductive characteristics ofPseudoperichaeta nigrolineata (Dipt., tachinidae), parasitoid ofOstrinia nubilalis (Lep., pyralidae)

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