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Redescription of Bursaphelenchus eucarpus Rühm, 1956 (Nematoda: Aphelenchoididae) associated with the apple bark beetle, Scolytus mali Bechstein, and the shothole borer, S. rugulosus Müller

In: Nematology
Authors:
Jianfeng Gu Technical Centre, Ningbo Entry-Exit Inspection and Quarantine Bureau, 9 Mayuan Road, Ningbo 315012, Zhejiang, P.R. China

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Marek Tomalak Department of Biological Pest Control, Institute of Plant Protection, Władysława Węgorka 20, 60-318 Poznań, Poland

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Helen Braasch , Kantstraße 5, D-14471 Potsdam, Germany

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Yiwu Fang Technical Centre, Ningbo Entry-Exit Inspection and Quarantine Bureau, 9 Mayuan Road, Ningbo 315012, Zhejiang, P.R. China

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Summary

New morphological, molecular and bionomic data are added to update the description of Bursaphelenchus eucarpus. The nematode was isolated from larval galleries and adults of the apple bark beetle, Scolytus mali, and the shothole borer, S. rugulosus, present under the bark of the bird cherry, Prunus padus, and the common European plum, P. domestica, in Poland. Detailed male, female and dispersal juvenile morphology and morphometrics are documented and compared with the original description. From partial 18S, ITS1/2 and partial 28S D2-D3 sequences and morphological features (three lateral lines, position of caudal papillae, shape of the delicate spicules with dorsally bent condylus, lack of vulval flap, a long post-uterine branch and a hyaline region at the female tail tip) it can be concluded that B. eucarpus belongs to the eremus group of Bursaphelenchus. The differentiation from related species of the eremus group is discussed.

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