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Evaluation of techniques for quantitative detection of Phytophthora cinnamomi |
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| Authors: | FC Greenhalgh |
| Institution: | Plant Research Institute, Swan Street, Burnley, Melbourne, Australia, 3121 |
| Abstract: | Three baiting techniques and a sieving technique were evaluated for the quantitative detection zof Phytophthora cinnamomi Rands. Baiting with seedlings of Lupinus angustifolius L. (blue lupins), cotyledons of Eucalyptus sieberi F. Muell. and pear fruits cv. Packham's Triumph, detected one chlamydospore introduced into 50 g of either sand or soil. Sieving detected one chlamydospore in 50 g sand and also in 5 g soil. In naturally-infested soil, diluted with a similar non-infested soil, P. cinnamomi was detected at dilutions of and by the sieving and the baiting techniques, respectively. In general, pears were the most satisfactory bait for the detection and isolation of P. cinnamomi. The potential of baiting techniques for estimating numbers of propagules of P. cinnamomi in naturally-infested soil is discussed. |
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