aquatic plant identification & management - kansas …aquatic sites impounded waters: ¾ponds,...

Aquatic Plant Identification &

Management

Weedy Pond

Aquatic Sites

Impounded Waters: ponds, lakes, reservoirs

Flowing Waters:rivers, streams, canals

Water Saturated Areas:marshes, seeps, drainage ditches

Vegetation ConcernsImpounded waters

fish populationsrecreation activitiesodor

Flowing waterswater transport in canals

Water saturated areasnone, except around margins

Aquatic Plant ID and Classification

Algae

Floating Plants

Submersed Plants

Emersed Plants

Marginal Plants

Algae

Primitive nonvascular plants

Planktonic

Filamentous

Chara

Planktonic Algae

Planktonic Algae

Filamentous Algae

Filamentous Algae

Chara

Chara

Floating Plants

Free floating or rooted with floating leaves

Duckweeds

Watermeal

Waterlillies

American Lotus

Duckweed

Duckweed

Giant Duckweed

Watermeal

Waterlilly

Submersed Plants

PondweedsElodeaWatermilfoil

Coontail

Naiads

Bladderwort

u Plants that grow mainly below the water surface

Pondweeds

American Pondweed

Curlyleaf Pondweed

Sago Pondweed

Naiad

Coontail

Watermilfoil

Emersed PlantsPlants rooted in water, but the

majority of foliage above water.

WatershieldArrowheadWater primroseWater speedwell

Arrowhead

Arrowhead

Waterprimrose

Waterprimrose

Water Speedwell

Marginal Plants

ReedsSedgesBulrushCattailsHorsetail/Scouring Rush

SmartweedsPurple loosestrifeCottonwoodWillow

u Plants growing around the margin of the shoreline or in shallow water.

Cattail

Purple Loosestrife

Willow

Bullrush

Smartweed

Sedges

Scouring Rush-Horsetail

Scouring Rush-Horsetail

Aquatic Plant Management Methods

Prevention

Mechanical and Physical Removal

Biological

Chemical

Aquatic Dyes

Herbicide Product Selection

Product availability and formulation

Weed spectrum

Water use restrictions

Application timing

Water User Restrictions

Aquatic Weed Response Table

Herbicide Application

GranularHand

Mechanical Spreader

Granular Blower

LiquidDirect Diluted

Hand or backpack sprayer

Handgun power sprayer

Flowing water drip system

Calibration Calculations

Water Surface Acres = surface area in square ft43,560

Volume in Acre-ft = surface acres X Ave. depth in ft

Surface Area & Depth Determination

Aquatic Web Sites

Kansas Department of Wildlife and Parkswww.kdwp.state.ks.us

Texas A&M Aquaplantwww.aquaplant.tamu.edu

Missouri Department of Conservationwww.mdc.mo.gov/nathis/plantpage/flora/wetplant/

KSU Weed Managementwww.oznet.ksu.edu/weedmanagement

Mixed Aquatic Vegetation

K STATEResearch and ExtensionDallas PetersonExtension Weed Specialist785-532-5776dpeterso@oznet.ksu.edu

K-StateResearch and Extension