Detection of tomato torrado virus in South Australia

 

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Publication Date

Fri, 23 Jun 2023, 07:54

Last Updated

June 23, 2023, 7:54 a.m.

Report Number

AUS-14/2

Country

Australia

Pest Id

Tomato torrado virus - (TOTV00)

Report Status

Final

Hosts

Tomato Solanum lycopersicum

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

Detection of tomato torrado virus (ToTV) in greenhouse tomatoes in the Northern Adelaide Plains of South Australia.

Summary

In South Australia, the virus causes leaf mottling, yellow spotting followed by necrosis at the base of leaflets. In some instances stem necrosis can occur. Symptoms are most severe when plants are under stress during autumn and early winter.

Unlike overseas reports, no fruit symptoms (necrotic lines and blotches, and fruit distortion) have been reported from SA.

The virus was first described in 2007. However, there is strong evidence that the virus may have been present in Australia since at least 2005 when similar symptoms were noticed. Preserved samples from that event have tested positive to ToTV.

Danger

An exotic plant pest called Tomato torrado virus (ToTV) has been detected in glasshouse tomatoes in South Australia. This newly described virus mainly affects tomatoes and is spread by the greenhouse whitefly. Local observations indicate that many commonly grown tomato varieties seem to be resistant to the virus.

Contact for info

Australian Chief Plant Protection Officer Australian Government Department of Agriculture GPO Box 858 Canberra ACT 2601 Australia [email protected]

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