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Het parasitaire karakter van Septotinia populiperda Waterman & Cash

With a summary: The parasitism of septotinia populiperdaWaterman & Cash

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Summary

Mature apothecia ofSeptotinia populiperda Waterman andCash are formed in spring and early summer on leaves shed the previous autumn. The ascospores ofS. populiperda produce an infection in the form of leafblotches only when an injury of the leaf is present.P. candicans Ait. is more susceptible to the parasite thanP. marilandica Bosc. andP. brabantica Houtz. Leafblotches are produced in equal numbers when the ascospores are sprayed with an atomizer upon the upper or the lower leafsurface. The germination of the ascospores is inhibited in vitro at a concentration of 7 to 8 mg copper per liter, when copper is used as Bordeaux mixture, or as coppersulfate (CuSO45H2O).

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Literatuur

  1. Waterman, A. M. &Cash, E. K.-1950. Leaf blotch of poplar caused by a new species of Septotinia. Mycologia 42:374–384.

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  3. Van den Ende, G.-1952. Een bladvlekkenziekte voorkomend op de populieren, veroorzaakt door Septotinia populiperda Waterman & Cash. Tijdschrift over Plantenziekten 52: 54–59.

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  4. Hartsuyker, K.-1940. Het wetenschappelijk onderzoek van fungiciden. Diss. Amsterdam.

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Authors and Affiliations

  1. Phytopathologisch Laboratorium “Willie Commelin Scholten”, Baarn

    Ir G. van den Ende

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  1. Ir G. van den Ende
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van den Ende, I.G. Het parasitaire karakter van Septotinia populiperda Waterman & Cash. Tijdschrift Over Plantenziekten 60, 253–255 (1954). https://doi.org/10.1007/BF01980138

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  • DOI: https://doi.org/10.1007/BF01980138

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