UCCE Sonoma County
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UCCE Sonoma County

Posts Tagged: aquatic

Delta Conservancy seeking partners for Arundo control and habitat restoration in the Delta

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).

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, long-term Arundo Control and Restoration...

Posted on Wednesday, March 20, 2019 at 11:32 AM

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 cites of Redding and Anderson, ending a...

Posted on Wednesday, February 27, 2019 at 10:18 AM
Tags: aquatic (41), Aquatic Plants (25), aquatic weeds (49)

Costs to manage invasive aquatic weeds in the Delta

Harvesting water hyacinth

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.

Harvesting water hyacinth
Harvesting water hyacinth

Harvesting water hyacinth

Posted on Thursday, December 6, 2018 at 3:22 PM
  • Author: Karen Jetter
  • Author: Kjersti Nes
  • Posted by: Guy B Kyser
Tags: aquatic (41), aquatic weeds (49)

Waterprimrose shows disturbance-related dispersal along the Russian River

Uruguay waterprimrose

It may be widely understood that most aquatic and wetland weeds are spread by water currents, but the patchwork of colonizing exotic plants can be puzzling. Why do weeds establish in some places but not others? Generally, the number of propagules (seeds or plant fragments) moving in a watershed is...

Uruguay waterprimrose
Uruguay waterprimrose

Posted on Monday, July 16, 2018 at 8:50 AM
Tags: aquatic (41), Aquatic Plants (25), aquatic weeds (49)

Looking for the right herbicide for Egeria

Brazilian waterweed (Egeria densa) growing in a 40-gallon mesocosm at the USDA Aquatic Weed Research Facility, Davis. Photo by Christy Morgan, USDA.

We are doing a trial of eleven aquatic herbicides for their potential to control Brazilian waterweed (Egeria densa). The active ingredients being tested are bispyribac sodium, carfentrazone, copper-ethylenediamine complex, diquat, dipotassium salt of endothall, the dimethylalkylamine salt of...

Brazilian waterweed (Egeria densa) growing in a 40-gallon mesocosm at the USDA Aquatic Weed Research Facility, Davis. Photo by Christy Morgan, USDA.
Brazilian waterweed (Egeria densa) growing in a 40-gallon mesocosm at the USDA Aquatic Weed Research Facility, Davis. Photo by Christy Morgan, USDA.

Brazilian waterweed (Egeria densa) growing in a 40-gallon mesocosm at the USDA Aquatic Weed Research Facility, Davis. Photo by Christy Morgan, USDA.

Posted on Friday, July 6, 2018 at 1:42 PM
Tags: aquatic (41), Aquatic Plants (25), aquatic weeds (49)
Focus Area Tags: Environment

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