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New wheat leaf rust menace

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Researchers have detected a new leaf rust pathotype on samples of the Naparoo wheat variety collected in northern New South Wales in early August... As a consequence of the discovery, Professor Park has urged grain growers to be vigilant in checking their crops for leaf rust, and submit plant samples they suspect are infected with the disease for testing... He says the new pathotype found near Gragin and Graman, east of Moree, is a mutation of an existing pathotype that has added virulence for the leaf rust resistance gene, Lr24...
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