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Detection of a new pathotype of Elsinoe australis causing black scab of jojoba in New South Wales and Queensland

 
old revision
Publication Date
Fri, 23 Jun 2023, 05:51
Last Updated
June 23, 2023, 5:51 a.m.
Report Number
AUS-48/2
Country
Australia
Pest Id
Elsinoe australis - (ELSIAU)
Report Status
Preliminary
Hosts
Jojoba (Simmondsia chinensis)
Pest Status (old values from ISPM 8 -1998 )
  • Present: only in some areas
Pest Status (ISPM 8 - 2021)
  • Present: not widely distributed and under official control
Geographical Distribution
New South Wales and Queensland
Summary

In 2005, a black scab of jojoba was seen in jojoba plantations in New South Wales and Queensland. Black scab lesions were detected on leaves and stems.

Identification of the cause was undertaken and it has been determined that it is a new distinct pathotype, separate from other Elsinoe species found in Australia.Further work is ongoing to define host range and pathogenicity.

Danger
A new pathotype of E. australis has been detected on jojoba. It has not been found on sweet oranges in Australia.
Contact for info
Australian Chief Plant Protection Officer Australian Government Department of Agriculture, GPO Box 858 Canberra ACT 2601 Australia [email protected]
Report files
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Issue keywords
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