Risk assessment for the newly discovered parasitic nematode Pratylenchus parazeae in the Australian sugarcane industry
Root lesion nematode is the most important nematodes of sugarcane worldwide causing significant loss of productivity and profitability. Experience from other crops suggested that the pathogenicity of different lesion nematodes can vary depending on varietal and/or environmental conditions. Species identification, and the pathogenicity is important to help management as some varieties, crops and plant types have different resistance or susceptibility to different members of the Pratylenchus family. However, the two species of lesion nematodes are almost identical in form and structure and it is extremely difficult to separate them visually.
Correct species identification, along with understanding the pathogenicity of P. parazeae undertaken in this project will be integral to mitigate the effects in the pathogen in Australia. This project will characterise the morphology of P. parazeae. This project will provide insight into whether the new nematode is a possible source of confounding effects and may support improved utility of the SARDI test.
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