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Dieback disease on highbush blueberries caused by Godronia cassandrae


, : Dieback disease on highbush blueberries caused by Godronia cassandrae. Acta Horticulturae (61): 197-200

Longitudinal fissures and severe flaking of the bark followed by dieback were evident in the older wood. Among the 12 cvs examined Bluecrop and Goldtraube Sel. 23 were most resistant and Heerma I, Heerma II and Berkeley were most susceptible with over 30% of the plants affected.

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Related references

Meizer R.R.; Hoffmann G.M., 1980: Dieback of highbush blueberries caused by godronia cassandrae. Distinct differentiation between the symptoms caused by G. cassandrae and the symptoms of other twig and stem diseases may be made. Isolating and cultivating procedures to identify the pathogen precisely are described. The fungus is able to make u...

Weingartner D.P.; Klos E.J., 1975: Etiology and symptomatology of canker and dieback diseases on highbush blueberries caused by godronia cassandrae and diaporthe vaccinii. Phytopathology 65(2): 105-110

Weingartner, D.P.; Klos, E.J., 1975: Etiology and symptomatology of canker and dieback diseases on highbush blueberries caused by Godronia (Fusicoccum) cassandrae and Diaporthe (Phomopsis) vaccinii. Both fungi cause these severe diseases of Vaccinium corymbosum in Mich. G. cassandrae was epiphytotic in N. Mich., while D. vaccinii was epiphytotic in some Ind. fields and in extreme S. Mich. Depending upon the field, either or both diseases were...

Lockhart C.L., 1970: Leaf spot of highbush blueberry d caused by godronia cassandrae f vaccinii. Canadian Plant Disease Survey 50(2): 93-94

Lockhart, C.L., 1970: Leaf spot of Highbush Blueberry caused by Godronia cassandrae f. vaccinii. This disease of Vaccinium induced circular leaf spots 1.5-10 mm diam. with well defined margins, light to dark brown with darker borders. Pycnidia (Fusicoccum putrefaciens) formed in affected leaf tissues held in a moist chamber or on agar. Var. B...

Stromeng, G.M.; Stensvand, A., 2001: Susceptibility of highbush blueberry (Vaccinium corymbosum L.) cultivars to Godronia canker (Godronia cassandrae f. sp. vaccinii) in Norway. Godronia canker, caused by the fungus Godronia cassandrae f. sp. vaccinii, was detected for the first time on highbush blueberry (Vaccinium corymbosum) in Norway in 1995, and has caused severe stem wilting and dieback of young bushes. The disease...

Borecki, Z.; Pliszka, K., 1978: Canker of highbush blueberry caused by Godronia cassandrae f. vaccinii (Peck.) Groves. Symptoms of the disease, observed in Poland in 1973, appeared on Vaccinium cv. Jersey, as local bark necroses, mostly on the parts near to the ground but sometimes involving whole shoots. Pycnidia were formed in the necrotic bark.

Szyndel M.; Wisniewska J., 1982: Anatomical changes in the stems of highbush blueberry vaccinium australe caused by the fungus godronia cassandrae f vaccinii. Some histological changes were observed in blueberry stems infected by the fungus G. cassandrae. Dead cells of subepidermal collenchyma and cortical parenchyma filled with brown flocculent deposits were seen in the lesion areas. Pycnidia character...

Szyndel, M.; Wisniewska, J., 1982: Anatomical changes in the stems of highbush blueberry (Vaccinium australe Small), caused by the fungus Godronia cassandrae f. vaccinii (Peck) Groves. Dead cells of subepidermal collenchyma and cortical parenchyma filled with brown flocculent deposits were seen in the lesion areas on V. australe [V. corymbosum]. Pycnidia characteristic of the conidial stage (Topospora myrtilli) were found in the...

Melzer, R.R.; Hoffmann, G.M., 1980: Dieback of cultivated blueberry (pathogen: Godronia cassandrae Peck). The disease syndrome and morphology and physiology of the fungus on Vaccinium corymbosum in W. Germany were studied. Spore germination depended on high RH and was possible even at 2 deg C. Growth was limited at 30 deg but continued below 10 deg an...