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Registros recuperados: 10
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Acarien rouge de la tomate: nouvelles observations et perspectives Inra
Migeon, A..
Tetranychus evansi, acarien rouge de la tomate, principalement inféodé aux solanacées, n'a pas encore d'impact sur les cultures en France. Mais ses potentialités d'expansion - qui le rapprochent de Bemisia tabaci - nécessitent de bien connaître ce ravageur potentiel, tant au niveau de sa biologie, que de ses plantes hôtes ou de son aire de répartition.
Tipo: Journal Article Palavras-chave: TETRANYCHIDAE.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008aafb3978&uri=/notices/prodinra1/2008/08/
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Description of a new Tetranychus (Acarina, Prostigmata: Tetranychidae) pest of Musa from French Guiana Inra
Auger, P.; Migeon, A.; Flechtmann, C.H.W..
A new species of tetranychid mite, genus Tetranychus Dufour, 1832, is described and illustrated herein from neotropical area. Tetranychus musae sp. nov. (Acari, Prostigrnata: Tetranychidae) differs from other species in the genus by the combination between the arrangement of leg setae on females tarsus 1 and the shape of the aedeagus. Tarsus I beurs one tactile setae proximal ta proximal duplex setae and three tactiles in line or almost in Jine with proximal duplex setae. The aedeagus knob consists of an acute posterior projection bent ventrally and a larger anterior rounded projection directed anterodorsally. T musae specimens were collected in French Guiana where they appeared to be a pest of Musa sp. A key to adults of neotropical species of the genus...
Tipo: Journal Article Palavras-chave: SYSTEMATIQUE; IDENTIFICATION; ACARIEN PHYTOPHAGE ACARI; TETRANYCHIDAE; TETRANYCHUS MUSAE SP. NOV.; MUSA; FRENCH GUIANA.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20099636e038&uri=/notices/prodinra1/2010/02/
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Differential gene expression of the honey bee Apis mellifera associated with Varroa destructor infection Inra
Navajas, M.; Migeon, A.; Alaux, C.; Martin-Magniette, M.L.; Robinson, G.E.; Evans, J.D.; Cros-Arteil, S.; Crauser, D.; Le Conte, Y..
Background: The parasitic mite, Varroa destructor, is the most serious pest of the western honey bee, Apis mellifera, and has caused the death of millions of colonies worldwide. This mite reproduces in brood cells and parasitizes immature and adult bees. We investigated whether Varroa infestation induces changes in Apis mellifera gene expression, and whether there are genotypic differences that affect gene expression relevant to the bee's tolerance, as first steps toward unravelling mechanisms of host response and differences in susceptibility to Varroa parasitism. Results: We explored the transcriptional response to mite parasitism in two genetic stocks of A. mellifera which differ in susceptibility to Varroa, comparing parasitized and non-parasitized...
Tipo: Journal Article Palavras-chave: ABEILLE DOMESTIQUE; APIS MELLIFERA; ACARIEN PARAISITE; VARROA DESTRUCTOR.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20095dd5dfa6&uri=/notices/prodinra1/2010/12/
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Ladybeetles (Coccinellidae) Inra
Roy, H.; Migeon, A..
The majority of Coccinellidae are beneficial predators and they have received considerable research attention because of their potential as biological control agents. Indeed the role of coccinellids as predators of pest insects has been a major factor in the movement of coccinellids between countries. The commercial production of coccinellids by biological control companies and local producers led to a rapid increase in distribution thoughout the 1990’s. To date, 13 alien coccinellid species have been documented in Europe; 11 of these are alien to Europe (two are alien to Great Britain and Sweden but native within Europe). The distribution of alien coccinellids in Europe mirrors the biogeographical distribution and patterns of introduction. Some species...
Tipo: Book Chapter Palavras-chave: ESPECE INVASIVE; PREDATEUR; COCCINELLE COCCINELLID; LADYBIRD; ALIEN; BIOLOGICAL CONTROL AGENT; HARMONIA AXYRIDIS; DISTRIBUTION PATTERNS.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201086003040&uri=/notices/prodinra1/2011/01/
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Les tétranyques des bambous en France Inra
Auger, P.; Migeon, A..
Quelques éléments de biologie et de lutte concernant les 2 espèces de tétranyques trouvées sur les bambous en France, Stigmaeopsis celarius et Schizotetranychus bambusae
Tipo: Journal Article Palavras-chave: TETRANYCHIDAE.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008bd933228&uri=/notices/prodinra1/2008/08/
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Microsatellite markers reveal spatial genetic structure of Tetranychus urticae (Acari: Tetranychidae) populations along a latitudinal gradient in Europe Inra
Carbonnelle, S.; Hance, T.; Migeon, A.; Baret, P.; Cros-Arteil, S.; Navajas, M..
The genetic structure of populations of the two-spotted spider mite Tetranychus urticae was investigated along a south–north European transect spanning from southern France to The Netherlands. Mites were collected on Urtica dioica in 6 sampling zones. Microsatellite variation at 5 loci revealed considerable genetic variation with an average heterozygozity of 0.49. Significant heterozygote deficiency was found in 7 populations out of the 18 samples analyzed and one of them was completely monomorphic. Tetranychus urticae populations show some level of genetic structuring. First, genetic differentiation between localities (F ST estimates) was significant for all comparisons. Second, the analysis of molecular variance, AMOVA, indicates that there is an...
Tipo: Journal Article Palavras-chave: TETRANYCHUS URTICAE; TETRANYCHIDAE.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008c49f89cb&uri=/notices/prodinra1/2008/05/
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Mites and ticks (Acari) Inra
Navajas Navarro, M.; Migeon, A.; Estrada-Peña, A.; Mailleux, A.C.; Servigne, P.; Petanović, R..
The inventory of the alien Acari of Europe includes 96 species alien to Europe and 5 cryptogenic species. Among the alien species, 87 are mites and 9 tick species. Besides ticks which are obligate ectoparasites, 14 mite species belong to the parasitic/predator regime. Among these species, some invaded Europe with rodents (8 spp.) and others are parasitic to birds (2 spp). Th e remaining 77 mite species are all phytophagous and among these 40% belong to the Eriophyidae (37 spp.) and 29% to the Tetranychidae (27 spp.) families. Th ese two families include the most signifi cant agricultural pest. Th e rate of introductions has exponentially increased within the 20th century, the amplifi cation of plant trade and agricultural commodities movements being the...
Tipo: Book Chapter Palavras-chave: ALIEN; MITE; TICK; ACARI; ERIOPHYIDAE; ; TETRANYCHIDAE; ; BIOLOGICAL CONTROL; TETRANYCHUS EVANSI; OLIGONYCHUS PERSEAE; POLYPHAGOTARSONEMUS LATUS; BREVIPALPUS CALIFORNICUS; ACERIA SHELDONI; ACULOPS PELEKASSI; DERMATOPHAGOIDES; EVANSI; VARROA DESTRUCTOR.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20102ae85b9&uri=/notices/prodinra1/2011/01/
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Modelling the potential distribution of the invasive tomato red spider mite, Tetranychus evansi (Acari: Tetranychidae) Inra
Migeon, A.; Ferragut, F.; Escudero-Colomar, L.A.; Fiaboe, K.; Knapp, M.; de Moraes, G.J.; Ueckermann, E.; Navajas, M..
Predicting the potential geographical distribution of a species is particularly important for pests with strong invasive abilities. Tetranychus evansi Baker & Pritchard, possibly native to South America, is a spider mite pest of solanaceous crops. This mite is considered an invasive species in Africa and Europe. A CLIMEX model was developed to predict its global distribution. The model results fitted the known records of T. evansi except for some records in dry locations. Dryness as well as excess moisture stresses play important roles in limiting the spread of the mite in the tropics. In North America and Eurasia its potential distribution appears to be essentially limited by cold stress. Detailed potential distribution maps are provided for T. evansi...
Tipo: Journal Article Palavras-chave: BIOLOGICAL INVASIONS; CLIMEX; CLIMATE MODELLING; PREDICTING SPECIES DISTRIBUTION; DISPERSAL; TETRANYCHUS EVANSI.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010fce9480e&uri=/notices/prodinra1/2011/03/
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Notes on the genus Eotetranychus (Acari: Tetranychidae) in Italy and France with a redescription of Eotetranychus fraxini Reck, new record for Italy and Western Europe Inra
Migeon, A.; Malagnini, V.; Navajas, M.; Duso, C..
Until now eight species in the genus Eotetranychus were known from Italy and nine from France. This study reports the presence of two additional species in Italy: E. aceri Reck and E. fraxini Reck and one in France: E. uncatus Garman. New host plants are reported for E. rubiphilus Reck and E. aceri, and distributional and host plant data are recorded for several other species. E. fraxini was previously known only from Georgia and Hungary and is redescribed here
Tipo: Journal Article Palavras-chave: REPARTITION GEOGRAPHIQUE ACARI; HOST PLANT; GEOGRAPHIC DISTRIBUTION.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008d75ca863&uri=/notices/prodinra1/2008/08/
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Reproductive performance of seven strains of the tomato red spider mite Tetranychus evansi (Acari: Tetranychidae) at five temperatures Inra
Gotoh, T.; Sugimoto, N.; Pallini, A.; Knapp, M.; Hernandez-Suarez, E.; Ferragut, F.; Ho, C.C.; Migeon, A.; Navajas Navarro, M.; Nachman, G..
The tomato red spider mite Tetranychus evansi Baker et Pritchard occurs on solanaceous plants, and causes serious damage to a variety of crops in Africa and Europe. In 2001 this species was also found in Japan, on nightshade (Solanum nigrum L.), and its invasion to solanaceous of agricultural importance is feasible. To evaluate its potential severity as a pest, the present study assessed the life-history parameters, such as the rate of development and the intrinsic rate of natural increase (r (m)), on S. nigrum for T. evansi collected on seven sites worldwide. Increasing temperatures between 15 and 32.5A degrees C significantly increased the developmental rate of the seven strains while immature developmental duration was about the same at 32.5-40A degrees...
Tipo: Journal Article Palavras-chave: SOLANACEES; BIOINVASION.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201175d1c332&uri=/notices/prodinra1/2011/06/
Registros recuperados: 10
Primeira ... 1 ... Última
 

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