UCCE Sonoma County
University of California
UCCE Sonoma County

Posts Tagged: aquatic weeds

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 (46), 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...

Posted on Monday, July 16, 2018 at 8:50 AM
Tags: aquatic (33), Aquatic Plants (24), aquatic weeds (46)

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...

Posted on Friday, July 6, 2018 at 1:42 PM
Tags: aquatic (33), Aquatic Plants (24), aquatic weeds (46)
Focus Area Tags: Environment

Tracking water hyacinth with GPS

Figure 1. Water hyacinth mats floating in the Sacramento-San Joaquin Delta.

Water hyacinth (Eichhornia crassipes (Mart.) Solms)) is a perennial free-floating aquatic plant species native to the Amazon region of South America. It has become invasive around the world, including the Sacramento-San Joaquin Delta in central California. Water hyacinth can disperse and colonize...

Posted on Monday, April 30, 2018 at 9:57 AM
Tags: aquatic (33), aquatic weeds (46)

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