Abstract
A nematode tentatively identified from its perineal pattern as Meloidogyne arenaria was found in a planting of Leucaena leucocephala at Crows Nest, Queensland. This is the first report of root-knot nematode on Leucaena in Australia. Further characterisation of the nematode using a standard differential host test confirmed its identity as M. arenaria race 2. Since most previous reports had suggested that Leucaena is resistant to Meloidogyne spp., L. diversifolia and L. leucocephala cw. Cunningham and Peru were tested in a glasshouse for their capacity to host Australian populations of M. javanica, M. incognita, and M. arenaria. L. diversifolia was susceptible to all species tested whereas L. leucocephala was resistant to M. javanica and M. incognita and susceptible to M. arenaria.
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Stirling, G.R., Stanton, J.M., Brandon, N. et al. Reaction of Leucaena to Australian populations of root-knot nematode (Meloidogyne spp.). Australasian Plant Pathology 21, 143–146 (1992). https://doi.org/10.1071/APP9920143
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DOI: https://doi.org/10.1071/APP9920143