Biological Control of Tamarix Using the Saltcedar Lear-feeding Beetle (Diorhabda elongata)


SCH Number
Lead Agency
Food and Agriculture, Department of (Department of Food and Agriculture)
Document Title
Biological Control of Tamarix Using the Saltcedar Lear-feeding Beetle (Diorhabda elongata)
Document Type
NOE - Notice of Exemption

Document Description
The saltcedar leaf-feeding bettle (Diorhabda elongata) is used as a biological treatment to control the invasive tree species Tarmarix throughout California. Direct negative impact of Tamarix infestations include: displacement of negative range plants by its aggressive growth, the possibly serious depletion of ground water due to its rapid evapotranspiration rate, increased deposition of sediments in infested streams, and the blockage of streams and artificial water channels by dense clumps of saltcedar growth, which can promote flooding during periods of heavy rain. Tamarix degrades wildlife habitat, stream channel morphology and flow, and increases soil salinity and wildlife frequency. The saltcedar beetles will be field released on Tamarix infestations by count biologists and trained individuals. The beetles feed on the leaves of the Tamarix, eventually eliminating the infestation from the area. The project would benefit the agriculture industry, residents in the areas, and overall health of the environment.

Contact Information
Jim Rains
Department of Food and Agriculture
1220 N Street
Sacramento, CA 95814

Phone : (916) 651-2871


Imperial Los Angeles Riverside San Bernardino San Diego

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 8: Sec. 15308
Reasons for Exemption
Project will ensure the enhancement and protection of the environment by controlling the invasive tree species Tamarix using the biological control method of saltcedar bettle releases.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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