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Diorhabda elongata
Biological agent type
leaf beetle
 
Plant species attacked
saltcedar (Tamarix ramosissima)
 
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Diorhabda elongata adult
 
Diorhabda elongata larvae
Images by Eric Coombs, Oregon Department of Agriculture.
Diorhabda elongata damage
 
If images are downloaded and used from the ODA web site please be sure to credit the photographer.
 
Site of attack
foliage
 
Mode of attack
Adults and larvae are defoliators.
 
Destructive stage
Adult and larvae stages.
 
Collection and release information
Limited in distribution at this time consult ODA for availability for your area.
 
History in Oregon
The leaf beetle Diorhabda elongata was released in Malheur County near Adrian in 2003. An extensive monitoring project is being conducted in cooperation with USDA-ARS scientists in Reno, NV. Beetle populations in Nevada have caused extensive defoliation. The beetles did well in a caged release and completed a generation before going into winter hibernation. Adults were recovered the following spring, however the cage and its contents were unfortunately destroyed by a severe flood in August. Releases were made at three other sites in Malheur County in 2005 in cooperation with the BLM. Additional releases are planned in 2006.
 
Release status in Oregon
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