Antagonism of fungi and actinomycetes isolated from composted eucalyptus bark to Phytophthora drechsleri in a steamed and non-steamed composted eucalyptus bark-amended container medium
Hardy, G.E.St.J. and Sivasithamparam, K. (1995) Antagonism of fungi and actinomycetes isolated from composted eucalyptus bark to Phytophthora drechsleri in a steamed and non-steamed composted eucalyptus bark-amended container medium. Soil Biology and Biochemistry, 27 (2). pp. 243-246.
Composted eucalyptus bark (CEB) (Eucalyptus calophylla R. Br. Lindl. and E. diversicololr F. J. Muell) has been shown to suppress Phytophthora cinnamomi Rands (Sivasithamparam, 1981; Sivasithamparam et al., 1981). Hardy and Sivasithamparam (1991c) showed that in an in vitro study, most fungi and actinomycetes isolated from the CEB were suppressive of P. drechsleri Sawada. This suppressiveness was shown to predominantly affect infectivity and not pathogen survival. In the present experiment, 44 fungal and 8 actinomycete isolates picked at random from isolations obtained from CEB, were screened against P. drechsleri in a steamed CEB-amended container medium. The aim was to determine whether individual fungal or actinomycete isolates are able to suppress the pathogenic activity P. drechsleri in container-grown plants.
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