Pathogenicity of the pinewood nematode, Bursaphelenchus xylophilus, to Japanese larch, Larix kaempferi, seedlings

Pathogenicity of the pine wood nematode, Bursaphelenchus xylophilus, to Japanese larch, Larix kaempferi, seedlings was tested with inoculation experiments under nursery conditions. Water suspensions of nematodes (mixed stages cultured on Botrytis cinerea or dispersal fourth-stage juveniles (DJ4) ext...

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Détails bibliographiques
Publié dans:Journal of nematology. - 1969. - 41(2009), 2 vom: 01. Juni, Seite 157-62
Auteur principal: Mamiya, Y (Auteur)
Autres auteurs: Shoji, T
Format: Article
Langue:English
Publié: 2009
Accès à la collection:Journal of nematology
Sujets:Journal Article Bursaphelenchus xylophilus Larix kaempferi Monochamus alternatus Pinus thunbergii inoculation maturation feeding pathogenicity
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520 |a Pathogenicity of the pine wood nematode, Bursaphelenchus xylophilus, to Japanese larch, Larix kaempferi, seedlings was tested with inoculation experiments under nursery conditions. Water suspensions of nematodes (mixed stages cultured on Botrytis cinerea or dispersal fourth-stage juveniles (DJ4) extracted from the adult Japanese pine sawyer, Monochamus alternatus) were injected into the stems of 2- and 3-year-old Japanese larch and Japanese black pine, Pinus thunbergii, seedlings growing in a nursery. In another treatment, Japanese pine sawyer adults holding DJ4 were released under a net that covered the upper half of the seedlings. Regardless of nematode inoculation method, Japanese larch seedlings were as susceptible as Japanese black pine seedlings to B. xylophilus under nursery conditions. The rate of disease development was similar on larch and pine seedlings. Nematode population densities were lower in the stems of dead larch seedlings than in the stems of dead pine seedlings. Histopathological observations revealed that the distribution of nematodes in the stems of dead larch seedlings was mostly limited to the cortex, phloem and cambial zone. Traumatic resin canal formation was one of the most characteristic symptoms in larch seedlings which was dissimilar to that in pine seedlings 
650 4 |a Journal Article 
650 4 |a Bursaphelenchus xylophilus 
650 4 |a Larix kaempferi 
650 4 |a Monochamus alternatus 
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650 4 |a inoculation 
650 4 |a maturation feeding 
650 4 |a pathogenicity 
700 1 |a Shoji, T  |e verfasserin  |4 aut 
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