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

Summary

SCH Number
2010078115
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
Received

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

(916) 651-2871

Location

Counties
San Diego San Bernardino Riverside Los Angeles Imperial

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.
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