Managing Duckweed Infestations in Large Ponds and Lakes

Professional Help Needed for 2-Acre Duckweed

Duckweed (Wolffia columbiana) covering a 2-acre lake requires an expert. DIY is not recommended.

Chemical control with aquatic herbicides—contact Georgia Dept. of Agriculture (djones@agr.state.ga.us) for licensed applicators.
Sterile grass carp—won't eliminate but will suppress. Call GA DNR Fisheries: 770-918-6418.

Control nutrient inflows: establish 20-ft fertilizer-free buffer at water's edge; manage goose population.

Aquatic Plant Management

About Gardening: White Powder on Privet Hedge: Scale Insects or Powdery Mildew?; Fixing Zone 4 Valve That Activates With Other Zones and Causes Pump Cycling; Hardie Controller Displaying Random Characters: Reset Procedure; Pest Concerns for Corkscrew Willows Near a Deck; Duckweed Eradication: Manual Removal Only; Bed Bug Infestation: Why Professional Treatment Is Essential for Complete Eradication; Controlling Dollarweed in St. Augustine Grass: Herbicides and Cultural Practices; Wild Violet Control in Bermuda Lawn; Trapping Armadillos with a Drift Fence; Eradicating Invasive Privet: A Long-Term Management Plan

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