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Floating Aquatic Vegetation Control Program
Water Hyacinth ( Eichhornia crassipes),
South American Spongeplant (Limnobium laevigatum),
Uruguay Water Primrose (Ludwigia hexapetala), and
Alligatorweed (Alternanthera philoxeroides)
California Department of Parks and Recreation
Division of Boating and Waterways
Aquatic Invasive Plant Control Program (AIPCP)
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Treatments for September 4 through September 7, 2018
In recognition of Labor Day AIPCP herbicide treatment activities will not occur on Monday, September 3rd. AIPCP will restart herbicide treatment activities on Tuesday, September 4th.
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Herbicide treatment of invasive floating aquatic vegetation will begin on March 12, 2018 in various areas of the Sacramento -San Joaquin Delta. For more information see the Public Notice.
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“Treatment sites and schedules are subject to change based on regulatory requirements, weather conditions, plant growth and movement, waterway traffic, listed fish presence surveys, and other conditions.”
- Spraying will be conducted during the hours of 7am to 4pm weekly, Monday thru Friday.
- Herbicide applications during the treatment period will utilize Glyphosate (Roundup Custom), 2,4-D (Weedar 64), and Imazamox (Clearcast)
Treatment Period:
Area 2-4: Mar. 1, 2018 – Nov. 30, 2018
Area 1: June 1, 2018 – Nov. 30, 2018
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ALA – Alameda; CC – Contra Costa;
MER – Merced; SAC – Sacramento; SJ – San Joaquin;
STAN – Stanislaus; SOL – Solano; YOLO – Yolo
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Since August 31, 2018, approximately 917 acres of water hyacinth, South American spongeplant, Uruguay water primrose and/or alligatorweed have been treated at 103 sites with 282 total treatments.
* Data are preliminary and subject to change.
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