UCCE Master Gardeners of San Joaquin County
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UCCE Master Gardeners of San Joaquin County

Posts Tagged: aquatic

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...

Uruguay waterprimrose
Uruguay waterprimrose

Posted on Monday, July 16, 2018 at 8:50 AM
Tags: aquatic (43), Aquatic Plants (25), aquatic weeds (52)

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...

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 (43), Aquatic Plants (25), aquatic weeds (52)
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...

Posted on Monday, April 30, 2018 at 9:57 AM
Tags: aquatic (43), aquatic weeds (52)

Students grow as scientists with research into mosquito refugia in invasive aquatic plants

Alice Liu and Taylor Barca take water quality measurements at a fluridone control tank at the Mesocosm Experiment in 2015 (picture credit: M. Portilla).

One of the many advantages of being part of DRAAWP is the multiple occasions to meet and work with people from a variety of backgrounds. There have been many opportunities to interact with a variety of disciplines, from satellite imaging and economics to...

Posted on Monday, April 9, 2018 at 9:19 AM
  • Author: Maribel (Mimi) Portilla
  • Posted by: Guy B Kyser
Tags: aquatic (43), aquatic weeds (52), mosquitos (1)

DRAAWP Aquatic Weed Control Project showing progress in reducing aquatic weeds and their costs

DRAAWP logo

The USDA-Agricultural Research Service (ARS)-funded Delta Region Areawide Aquatic Weed Project (DRAAWP) is reporting progress in reducing aquatic weed coverage in the Delta through the development and use of new control technologies and models, while...

Posted on Monday, March 19, 2018 at 12:31 PM
Tags: aquatic (43), aquatic weeds (52)

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