Stone fruits, Tranzschelia discolor, Western Australia
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RUST is caused by the fungus Tranzchelia discolor which attacks almonds, nectarines, peaches and, less commonly, apricots and plums in Western Australia.
Rust disease occurs in stone fruit orchards throughout the State and in some seasons causes premature leaf fall.
In unsprayed canning peach orchards growers have suffered considerable losses as a result of infected fruit being rejected for processing.
In recent spray trials satisfactory control has been achieved with the fungicides Delan, thiram and zineb.
Doepel, R F. and Hardisty, S. E.
"Rust of stone fruit : results of some recent spray trials,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 4
, Article 11.
Available at: https://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol4/iss8/11