Archive Nut, Prune and Olive Programs

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May 2025Archived

 

Field picture submitted by Elizabeth Fichtner

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Delta Region Areawide Aquatic Weed Project: Page

Biological control

Biological control of non-native, invasive weeds involves the relocation of natural enemies, typically insects, from the weeds' native range for release onto invasive populations of the weeds.
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Delta Region Areawide Aquatic Weed Project: Page

Chemical control

Herbicides labeled for aquatic use can be classified as either contact or systemic (see table). Contact herbicides act rapidly on the tissues contacted, typically causing extensive cellular damage and membrane leakage.
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Delta Region Areawide Aquatic Weed Project: Page

Aquatic weed control

Click the tabs on the left for descriptions of aquatic weed control methods.
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Delta Region Areawide Aquatic Weed Project: Page

Mechanical & physical methods

Mechanical control techniques may physically damage shoots, roots, or root crowns of plants to the point where they can no longer survive. Alternatively, mechanical control options can remove the entire plant.
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Delta Region Areawide Aquatic Weed Project: Page

About us

David Bubenheim (Co-Director) Senior Research Scientist Earth Science Division, Biospheric Science Branch National Aeronautics and Space Administration (NASA) Biospheric Research Branch, Ames Research Center David.L.Bubenheim@nasa.
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Delta Region Areawide Aquatic Weed Project: Page

Aquatic weeds

Alligatorweed Alternanthera philoxeroides Coontail Ceratophyllum demersum Cabomba Cabomba caroliniana Eurasian watermilfoil Myriophyllum spicatum Brazilian egeria Egeria densa Curlyleaf pondweed Potamogeton crispis Giant reed Arundo donax South American spongeplant Limnobium laevigatum Water hyacint...
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Delta Region Areawide Aquatic Weed Project: Page

Brazilian Egeria

Common name Brazilian egeria Scientific name Egeria densa Family Hydrocharitaceae Range Most western states including Washington, Oregon, Idaho, Colorado, Utah, Arizona, New Mexico, and California. Most common in Washington, Oregon and California.
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Delta Region Areawide Aquatic Weed Project: Page

Projects

Click the tabs on the left to see what we're up to.
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