First record of powdery mildew on carrots in Australia
James H. Cunnington A D , Andrew Watson B , Jose R. Liberato C and Rodney H. Jones AA Victorian Department of Primary Industries, Knoxfield Centre, Private Bag 15, Ferntree Gully Delivery Centre, Vic. 3156, Australia.
B New South Wales Department of Primary Industries, Yanco Agricultural Institute, Yanco, NSW 2703, Australia.
C Queensland Department of Primary Industries and Fisheries. Present address: Department of Primary Industry, Fisheries and Mines, Diagnostic Service Division, GPO Box 3000, Darwin, NT 0801, Australia.
D Corresponding author. Email: James.Cunnington@dpi.vic.gov.au
Australasian Plant Disease Notes 3(1) 38-41 https://doi.org/10.1071/DN08015
Submitted: 14 January 2008 Accepted: 26 March 2008 Published: 4 April 2008
Abstract
Powdery mildew is reported on carrots for the first time in Australia. The affected plants were on a property located in the Murrumbidgee Irrigation Area of New South Wales. Based on morphological data and an rDNA ITS sequence, the fungus was identified as Erysiphe heraclei. Inoculation tests showed that the fungus was aggressive on carrot, but weakly pathogenic on parsnip and parsley. Erysiphe heraclei is common on parsnip but this is the first record on carrot in Australia.
Acknowledgements
J.R. Liberato acknowledges the support of an Australian Biological Resources Study grant.
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