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Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006

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Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006
Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006

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Exotic
Present
New Zealand
Political Region

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(Tul. & C. Tul.) Samuels & Rossman
Tul. & C. Tul.
Samuels & Rossman
2006
134
ICN
species
Neonectria ditissima

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ditissima

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After expressing considerable doubt about the occurrence of European canker in New Zealand, Cunningham (1925b) reported it from the Whangarei district. It has become extremely common in the Auckland apple-growing areas. Brook, P. J., and Bailey (1965) recommend for its control autumn and winter sprays with either phenyl mercuric chloride or Bordeaux mixture. It is of considerable economic importance in the Auckland area and has limited the planting of some susceptible varieties.
Type: Corticolous Fungi; Description: Ascomata perithecial, scattered or gregarious in groups of 3–4, globose to ovoid, bright red becoming dark red, finely warted, 0.1–0.4 mm in diameter, ostiole papillate and surrounded by slightly convex, smooth disc, superficial; on or associated with cankers on branches. Asci clavate, 60–100 × 10–15 cm. Ascospores elliptical to broadly oval, 1-septate, 14–22 × 5–9 em, smooth to slightly verrucose, hyaline. Macroconidia cylindrical, slightly curved, 3–5-septate, 20–65 × 3–6 lm, smooth, hyaline. Microconidia cylindrical, 0-septate, 4–8 × 2–3 m, smooth, hyaline.
Distribution: Northland, Auckland, Coromandel, Waikato, Bay of Plenty, Taranaki, Gisborne, Hawkes Bay, Nelson, Westland.; 1st Record: Cunningham (1925b: as Nectria galligena).
Significance: A pathogen of apples (and occasionally pears), causing cankers on branches leading to dieback. The disease, known as ‘European canker’, is of considerable economic importance in the Auckland apple-growing area and has limited the growing of some susceptible varieties. It is not a major disease in other parts of the country (Atkinson 1971).; Host(s): Malus ×domestica, Pyrus communis, P. pyrifolia.

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Cylindrocarpon willkommii (Lindau) Wollenw.
Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006
Nectria ditissima Tul. & C. Tul. 1865
Nectria galligena Bres. 1901
Nectria galligena Bres.
Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006
Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006
Neonectria ditissma (Tul. & C. Tul.) Samuels & Rossman 2006
Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006
Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006
Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006
Neonectria ditissma (Tul. & C. Tul.) Samuels & Rossman (2006)
Neonectria galligena (Bres.) Rossman & Samuels (1999)
Neonectria galligena (Bres.) Rossman & Samuels (1999)
Neonectria galligena (Bres.) Rossman & Samuels (1999)
Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006

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Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman 2006
[Not available]

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1a8dcf30-de5f-4ee9-ac4e-ca1e3f9d4784
scientific name
Names_Fungi
10 November 2006
15 January 2014
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