UCCE Sonoma County
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UCCE Sonoma County

Posts Tagged: aquatic weeds

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 (34), aquatic weeds (47)

Quantifying floating aquatic vegetation using satellite imagery

The United States Department of Agriculture (USDA) Delta Region Areawide Aquatic Weed Project (DRAAWP) has, as one of its purposes, to enhance and implement the rollout of new, innovative, or unique processes to support finding and controlling aquatic invasive species. It is using that overarching...

Posted on Thursday, August 30, 2018 at 3:43 PM

Growth potential of South American spongeplant at different temperatures

A new plant developing at the end of a stolon.

South American spongeplant (Limnobium laevigatum) is a free-floating, freshwater aquatic plant that has been introduced to the Sacramento-San Joaquin Delta. Spongeplant can propagate sexually through seed production and asexually through the development of stolons that produce new plants. This...

Posted on Wednesday, August 22, 2018 at 2:00 PM
Tags: Aquatic Plants (24), aquatic weeds (47), invasive (3)

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 (34), Aquatic Plants (24), aquatic weeds (47)

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 (34), Aquatic Plants (24), aquatic weeds (47)
Focus Area Tags: Environment

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