In partnership with the San Diego River Conservancy (SDRC), Lakeside’s River Park Conservancy (LRPC) is working to control the spread of invasive, non-native plant species in San Diego County along the San Diego River. LRPC is requesting your permission to control weeds such as giant reed (Arundo donax), pampas grass (Cortaderia selloana), palm trees (Washingtonia robusta), and other targeted invasive plants on your property. These plants may contribute to flood damage, increase the risks associated with fire, degrade native habitat, and contain seeds which are noxious to pets. Weeds spread aggressively, potentially onto neighboring properties.

Landowners in our community have requested assistance in managing these plants due to the high cost of controlling and permitting. LRPC is providing this service at no cost to property owners. Please help us maintain natural resource values in San Diego County by granting permission to remove these harmful weed plants from your property.

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LRPC will typically treat these plants by cutting and applying glyphosate-based herbicides, (similar to Roundup®) which are certified by the U.S. Environmental Protection Agency for use in and around wetlands. The vegetation management crew is licensed and insured to carry out this application. After treatment, plants will be left standing for 2-3 months to allow herbicide to fully impact the roots. In some circumstances, treated invasive plants will be reduced to ground level and removed.

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Any resprouted invasive plants will be retreated when necessary. Native plants may also be installed on a case-by-case basis to revegetate the site following treatment of weeds. The cost of the initial treatments, retreatment, biomass reduction and any replanting will be the responsibility of LRPC.

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SDRC has obtained all necessary permits and approvals for treatments from the Army Corps of Engineers, California Department of Fish and Wildlife, San Diego Regional Water Quality Control Board, and the U.S. Fish and Wildlife Service. Reasonable precautions will be exercised by LRPC and its contractors to avoid damage to persons and property. SDRC, LRPC and program funders (The Wildlife Conservation Board among others) are not responsible for any erosion, flood, or fire damage occurring in or around treated plants before or after treatment. Creek crossing maintenance and function, particularly un-permitted structures, remain the responsibility of the property owner.