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Gymnetron linariae
Biological agent type
root galling weevil
 
Plant species attacked
dalmatian toadflax (Linaria dalmatica)
 
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Gymnetron linariae adult
Image by Eric Coombs, Oregon Department of Agriculture.
 
 
 
If images are downloaded and used from the ODA web site please be sure to credit the photographer.
 
Site of attack
Adults attack the shoots, larvae develop in galls formed on the roots and rhizomes.
 
Mode of attack
The larvae cause galls in the roots, which may act as nutrient sinks and reduce plant vigor. Adults may cause minor damage by feeding on flowers.
 
Destructive stage
Larval and adult.
 
Collection and release information
Not available at this time.
 
History in Oregon
The root gall weevil Gymnetron linariae was introduced into Wasco County in 2001, but failed to establish.
 
Release status in Oregon
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