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Longidorus Arthensis Sp. N. (Nematoda: Longidoridae) a Vector of Cherry Rosette Disease Caused By a New Nepovirus in Cherry Trees in Switzerland
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1994
Year
BotanyEntomologyLongidorus Arthensis SpPlant PathologyTree DiseasePlant-virus InteractionCherry TreesNematologyParasitologyPlant VirusVirologyCherry Rosette DiseaseBiologyCherry OrchardsNatural SciencesNew Longidorus SpeciesHyperparasiteNematode PestMedicine
A new Longidorus species was found associated with cherry rosette disease (CRD), caused by an uncharacterised nepovirus, in cherry trees in Switzerland. Longidorus arthensis sp. n. is characterised by having a wide bluntly rounded, lip region almost continuous with the body contour, large evenly bilobed amphidial pouches, bluntly rounded tail, common, functional males and first stage juveniles with a pegged tail terminus. Populations of L. arthensis were recovered from four cherry orchards, in the Arth region of Switzerland, in which some trees showed CRD symptoms. Bait testing individual nematodes collected from all four orchards confirmed L. arthensis as the natural vector of a nepovirus causing CRD. Largest numbers of L. arthensis were recovered from the deeper soil layers, below 30 cm, therefore to optimise detection of the nematode, soil samples should be collected below 30 cm depth.