Root-knot nematodes in Western Australia

Page last updated: Tuesday, 9 August 2016 - 3:43pm

Please note: This content may be out of date and is currently under review.

Plant resistance to root knot nematode (RKN)

During 2010-2011, a survey of RKN was conducted in the south west of Western Australia in carrot and potato paddocks. Resistance to RKN species has been determined for various crops (Table 1).

Table 1 Resistance ratings1 in glasshouse trials of a range of crops to root-knot nematode (RKN) species found in Western Australia. Entries in bold indicate resistance of the tested cultivar to the listed RKN species.

Plant Cultivar M. hapla M. incognita M. javanica M. fallax
Broccoli Aurora SS/SS2

R/HR

MS/MS  
Broccoli Bridge

R/MS

R/HR

MS/MS  
Carrot Mojo HS MS HS  
Carrot Stefano HS/HS MS/SS HS/MS  
Cauliflower Boris MS/SS

R/R

HS/HS  
Cauliflower Virgin SS/MS

R/HR

MS/HS  
Onion Mercedes MS HS/SS MS/HS  
Field pea Dunwa SS SS HS/MS  
Forage brassica Leafmore      

R

Forage brassica Pasja       SS
Lucerne SARDI 10 II       SS
Lucerne Venus       MS
Lupin Mandelup       SS
Millet Japanese HS MS MS/HS HS
Millet Nutrifeed SS MS SS/MS

HR/HR

Mustard Caliente       SS
Mustard Yellow

MS/R

MS/R

HS/MS  
Barley Hindmarsh       HS
Wheat Mace       HS
Oats Saia

R

HR

SS/R

MS
Oats Swan

HR

HR

R/R

MS
Rhodes grass Katambora

R

SS SS/SS SS
Rhodes grass Nemkat

R

HR

R/R

SS
Ryegrass Concord SS SS MS/MS MS
Ryegrass Crusader

R

HR

SS/SS  
Ryegrass Dargo

R

R

SS MS
Ryegrass Arnie       HS
Ryegrass Vortex       HS
Serradella Cadiz      

R

Sorghum Jumbo

R

HR

R/SS

SS/SS
Sorghum Superdan II

HR

HR

R/R

R

Balansa clover Paradana MS

R

HS/MS  
Biserulla Casbah       MS
Persian clover Prolific       MS
Subclover Gosse       MS
Subclover Trikkala HS SS HS/HS HS
White clover Haifa       MS
Tomato Tiny Tim HS HS/MS HS/HS HS/HS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1Multiplication rate (mr) is final egg count/initial number of eggs inoculated. HR=highly resistant, R=resistant, SS=slightly susceptible, MS=moderately susceptible, HS=highly susceptible.

2Double entries show results for two experiments. In some cases resistance ratings differ slightly between experiments.

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