Current Approved Aquatic Vegetation Treatment Proposals

Updated January 30, 2023

A Treatment Proposal must be submitted for review to TPWD, as well as local controlling entities, before vegetation management activities are conducted in public water. This page lists current treatment proposals that have been submitted and approved by Texas Parks and Wildlife Department. Note these are only proposals. Depending on weather, plant growth, and available funds, all of the acres proposed for treatment may not be treated.

Return to Nuisance Aquatic Vegetation page

Water BodyProposed DatePlant SpeciesProposed TreatmentAcres
TypeMethod
San Marcos River1/2/23Hydrilla verticillata, Ceratopteris thalictroides, Nasturtium officinale, Eichornia crassipes, Pistia stratiotes, Hygrophila polysperma, Limnophila sessifloraMechanicalPhysical removal, Physical removal, Physical removal, Physical removal, Physical removal, Physical removal2.37 ac, 0.08 ac, 1.7 ac, 0.22 ac, 0.22 ac, 2.37 ac, 0.22 ac
Lake Timpson1/1/23Giant salviniaChemicalRoundUp Custom8-15 ac
Lake Palestine1/1/23Giant salviniaChemicalDiquat, Penoxsulam, Fllumioxazin, Glyphosate, Pro MSM 60, Carfentrazone600 ac, 600 ac, 600 ac, 600 ac, 600 ac, 600 ac
Caddo Lake1/1/23Giant salvinia, Water hyacinthBiological, ChemicalSalvinia weevils, Diquat, Penoxsulam, Flumioxazin, Glyphosate, Carfentrazone, Pro MSM 60, Diquat, Penoxsulam, Flumioxazin, Glyphosate, 2,4-D, CarfentrazoneUp to 50 ac, 13,000 ac, 500 ac
Toldeo Bend1/1/23Giant salvinia, Water hyacinthBiological, ChemicalSalvinia weevils, Diquat, Penoxsulam, Flumioxazin, Glyphosate, Carfentrozone, Pro MSM 60, Diquat, Penoxsulam, Flumioxazin, Glyphosate, 2,4-D, Carfentrazone500 ac, 6000 ac, 200 ac
Taylor Bayou1/1/23Giant salvinia, Water hyacinthBiological, ChemicalSalvinia weevils, Diquat, Penoxsulam, Flumioxazin, Glyphosate, Carfentrazone, Pro MSM 60, Diquat, Penoxsulam, Flumioxazin, Glyphosate, 2,4-D, Carfentrazone100 ac, 600 ac, 600 ac
Hillebrandt Bayou1/1/23Giant salvinia, Water hyacinthBiological, ChemicalSalvinia weevils, Diquat, Penoxsulam, Flumioxazin, Glyphosate, Carfentrazone, Pro MSM 60, Diquat, Penoxsulam, Flumioxazin, Glyphosate, 2,4-D, Carfentrazone100 ac, 600 ac, 600 ac
Big Hill Bayou1/1/23Giant salvinia, Water hyacinthBiological, ChemicalSalvinia weevils, Diquat, Penoxsulam, Flumioxazin, Glyphosate, Carfentrazone, Pro MSM 60, Diquat, Penoxsulam, Flumioxazin, Glyphosate, 2,4-D, Carfentrazone100 ac, 600 ac, 600 ac
Adams Bayou1/1/23Salvinia spp., Water hyacinthChemicalDiquat, Penoxsulam, Flumioxazin, Glyphosate, Pro MSM 60, Carfentrazone, Diquat, Penoxsulam, Flumioxazin, Glyohosate, 2,4-D, Carfentrazone100 ac, 100 ac
Cow Bayou1/1/23Salvinia spp., Water hyacinthChemicalDiquat, Penoxsulam, Flumioxazin, Glyphosate, Carfentrazone, Pro MSM 60, Diquat, Penoxsulam, Flumioxazin, Glyphosate, 2,4-D, Carfentrazone120 ac, 100 ac
Kurth Lake1/1/23Common salviniaChemicalFlumioxazin, Carfentrazone, Diquat, Penoxsulam, Glyphosate, Pro MSM 605 ac
Lake Nacogdoches1/1/23Giant salviniaBiological, ChemicalSalvinia weevils, Diquat, Penoxsulam, Flumioxazin, Glyphosate, Carfentrazone, Pro MSM 6050 ac
Martin Creek Lake1/1/23Giant salviniaChemicalDiquat, Penoxsulam, Flumioxazin, Glyphosate, Carfentrazone, Pro MSM 6020 ac
B. A. Steinhagen Lake1/16/23Giant salviniaBiological, ChemicalGlyphosate, Diquat, Metsulfuron Methyl, Flumioxazin, Salvinia weevils2000 ac, 500 ac
B. A. Steinhagen Lake1/16/23Water hyacinth, AlligatorweedBiological, ChemicalGlyphosate, Diquat, Flumioxazin, Flea beetles1000 ac, 200 ac
Lake O the Pines1/16/23Giant salviniaBiological, ChemicalGlyphosate, Diquat, Metsulfuron Methyl, Flumioxazin, Salvinia weevils2000 ac, 200 ac
Sam Rayburn1/9/23Water hyacinth, AlligatorweedBiological, ChemicalGlyphosate, Diquat, Flumioxazin, Flea beetles1000 ac, 200 ac
Sam Rayburn1/9/23Giant salviniaBiological, ChemicalGlyphosate, Diquat, Metsulfuron Methyl, Flumioxazin2000 ac, 500 ac
Ascarate Lake2/1/23Marine NaiadMechanicalMechanical Cutting35 ac
Lake Raven1/26/23Giant salvinia, Water hyacinthBiological, ChemicalSalvinia weevils, Diquat, Penoxsulam, Flumioxazin, Glyphosate, Carfentrazone, Pro MSM 60, Diquat, Penoxsulam, Flumioxazin, Glyphosate, 2,4-D, Carfentrazone1-50 ac, 60 ac, 60 ac

Herbicide Labels & Safety Data Sheets

National Pesticide Information Center: Label and SDS Databases — list of searchable databases where you can find product labels and Safety Data Sheets (SDS) for herbicides mentioned in treatment proposals

Texas Lake Finder

Follow these links for information about public water bodies mentioned above: