J. F. G. Rochecouste

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confused with the commonly encountered rots due to P. expansum and P. verrucosum, although the rots due to P. expansum are soft, sunken, and watery, compared with the firmer, drier iesions produced by P. verrucosum and T. harzianum. Differentiation between these last two fungi can only be made with certainty by isolation, although the characteristic odour(More)
At fortnightly intervals, the spread of bacterial spot in two commercial outdoor plantings of standard Sims carnations and multiflowered Spray carnations was mapped and related to temperature and rainfall. The pattern of initial infections differed between the two types of carnations. Disease in Spray carnations began as marginal ‘hot spots’ and was traced(More)
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