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A survey of viral diseases of Allium crops in New Zealand
L. I.
Ward A C,
Z.
Perez-Egusquiza A,
J. D.
Fletcher B,
G. R. G.
Clover A
A
Plant Health and Environment Laboratory, Investigation and Diagnostic Centre, MAF Biosecurity New Zealand, PO Box 2095, Auckland 1140, New Zealand.
B
New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch 7608, New Zealand.
C
Corresponding author. Email: lisa.ward@maf.govt.nz
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Australasian Plant Pathology 38(5) 533–539 http://dx.doi.org/10.1071/AP09039
Submitted: 3 February 2009
Accepted: 10 June 2009
Published online: 17 August 2009
Abstract
Targeted surveillance was done in 2004/2005 and 2007 to determine the presence of viruses in ornamental and vegetable Allium crops in New Zealand. Several samples were tested for regulated viruses and viruses that commonly infect New Zealand’s Allium crops using enzyme-linked immunosorbent assay and reverse transcription-polymerase chain reaction. Most viruses were found to occur in mixed infections in garlic, onion, shallot, and in the ornamentals collected from the North and South Islands. New host associations were observed for some viruses previously recorded in New Zealand. Three viruses, Garlic virus A, Iris yellow spot virus and Shallot virus × (syn. Shallot mite-borne latent virus), were detected for the first time in New Zealand. However, Impatiens necrotic spot virus, Shallot yellow stripe virus, Sint-Jan’s onion latent virus, Tobacco rattle virus and Tomato black ring virus were not detected in the Allium plants tested.
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Australasian Plant Disease Notes
