aquatic vegetation id...
TRANSCRIPT
AquaticVegetationID&ManagementToddD.Sink,Ph.D.
AssociateDepartmentHeadforExtension&AssociateProfessor,DepartmentofWildlife&FisheriesSciences
FisheriesExtensionSpecialist,TexasA&MAgriLife ExtensionService
Improving Lives. Improving Texas.
Aquatic Vegetation Management◦ AquaPlant Website - http://aquaplant.tamu.edu/
214
Filamentous Algae Chelated copper complexes, diquat, or copper sulfateTank mix copper and diquat for best resultsMozambique tilapia
Chara (skunk grass)/NitellaChelated copper complexes or copper sulfate
Duckweed & WatermealCarfentrazone, penoxsulam, fluridone – systemic $$$$ Flumioxazin – contact $$ Diquat (duckweed only) $Tilapia and ducks – but have other issues – integrated management
Azolla or Mosquito FernCarfentrazone, diquat, fluridone, flumioxazin, penoxsulam, tilapia
Water Hyacinth
Increased water loss of 200 – 300%Non‐native
2,4-D, diquat, imazamox, imazapyr, or penoxsulam
Manual removal
Submerged Plants can be ConfusingEgeria
Hydrilla
Elodea
Hydrilla common – Egeria& Elodea not so much
Do not rake or cut!
If unsure diquat, endothall, fluridone, or penoxsulam kill them all
Grass Carp - Excellent
Hydrilla Elodea Egeria
If unsure diquat, endothall, fluridone, or penoxsulam kill them all
Grass Carp - E
Coontail
Seeds & Fruiting Bodies
Diquat, endothall, fluridone, flumioxazin
Grass carp – F-G
No raking or cutting!
Southern naiad (bushy pondweed)
Diquat, endothall, fluridone
Grass carp - E
Native, good fish habitat – can become problematic
Diquat, endothall, fluridone, imazamoxGrass carp - E
Submerged - bispyribac, carfentrazone, chelated copper + diquat, endothall, fluridone, penoxsulamEmerged tops - triclopyr, 2,4-DNot grass carp
Watermilfoil(s)
Illinois pondweedNative, good fish habitat, wildlife food
Can become too dense
diquat, endothall, fluridone, imazamox
Grass carp - E
Water Primrose
Land Water
2,4-D, glyphosate, imazamox, imazapyr, triclopyr or mowing/pulling
mowing
Alligatorweed
Non-Native
Cattail
Increase water evaporation 75-80%
Glyphosate, imazamox, or imazapyr
White or Fragrant
Spatterdock or Cow LilyYellow or Mexican Lily
Banana or Floating Hearts
Water Lilies
American Lotus
Mexican water lilyWater Shield
Floating Hearts Spatterdock
White water lily
Water lilies, lotus, & spatterdockFluridone, imazamox, imazapyr, triclopyr,
2,4-D or glyphosate
Rushes are round & sedges have edges – No! Glyphosate or imazapyr
Smartweed (water pepper)Glyphosate, 2,4-D
WaterleafGlyphosate, 2,4-D
American water willowNative, beneficial, good fish habitat – dense growthGlyphosate, imazapyr, triclopyr, 2,4-D
Arundo donax or Giant Reed
0
20,000
40,000
60,000
80,000
100,000
120,000
Native Arundo
Acr
e-ft
Annual Water Use
Imazapyr, triclopyr, glyphosate, or imazamox – then burn