Delta Region Areawide Aquatic Weed Project
Delta Region Areawide Aquatic Weed Project
Delta Region Areawide Aquatic Weed Project
University of California
Delta Region Areawide Aquatic Weed Project


NASA Ames Research Center
USDA-ARS Invasive Species and Pollinator Health Research Unit 
California Dept of Parks & Recreation - Division of Boating & Waterways
California Dept of Food & Agriculture
Sacramento-San Joaquin Delta Conservancy
University of California, Davis
Local mosquito vector control districts
General areas of study
Weed mapping tools
Management techniques and strategies
Weed effects on ecosystems, native plants, and water quality
Biological control agents
Effects of weeds on mosquito populations
Bio-economic modeling of weed control costs and project benefits


UC Weed Science blog

Figure 7. Habitat restoration work in progress at the Emigh R. Livestock / Ulatis Creek Arundo control and habitat enhancement project site. SRCD staff are broadcast-seeding the restoration site with native forbs and grasses using all-terrain vehicles (ATVs). Delta Conservancy seeking partners for Arundo control and habitat restoration in the Delta
Arundo donax is devastating to riparian habitat and becoming increasingly widespread in the Sacramento – San Joaquin Delta. To counter this growing problem, the Sacramento-San Joaquin Delta Conservancy (Delta Conservancy) envisions a delta-wide,...

Hydrilla eradicated in Shasta County
Occasional good news on the weed front... "SACRAMENTO — The California Department of Food and Agriculture (CDFA), working in cooperation with the Shasta County Agricultural Commissioner's office, has eradicated two hydrilla infestations within the...

Harvesting water hyacinth Costs to manage invasive aquatic weeds in the Delta
Attached is a presentation on the economics of controlling invasive aquatic weeds in the Sacramento-San Joaquin Delta. This was presented by Karen Jetter at the Delta Region Areawide Aquatic Weeds Program (DRAAWP) stakeholders meeting in October 2018.


Weed Research & Information Center - Aquatic Weed School. Don't forget to sign up for the 2018 Aquatic Weed School, September 5-6, 2018 in Davis, California. This is a two-day course focusing on aquatic weeds and management strategies.

We just posted a DRAAWP informational brochure under the Site Navigation tabs at the left. (This is a PDF of a trifold publication, so you may have to print it and fold it yourself to see how slick it is.)

New Progress Reports (February 2018) are now available under the Products tab!

DRAAWP researchers plan to attend the California Invasive Plant Council (Cal-IPC) Symposium, Nov 7-10, 2018, in Monterey. Presentations are expected to include reports on the waterhyacinth drift study, on research into control of waterhyacinth with herbicides, and research on control of waterhyacinth and arundo with biocontrol agents.


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