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Weed Solution Wizard - Step 3j of 3

Select your Product Preference

Review the weed description, then select from the control options below.


Horned Pondweed (Zannichellia palustris) is submersed with slender, creeping rhizomes and slender, upright stems. The opposite leaves sometimes appear whorled where branches depart are flat, filiform, about 0.5 mm wide and 2 to 10 cm long with sheathing stipules. The flowers are small, axillary, and lack sepals or petals. Mature fruits are on a short basal stalk, clustered, generally in groups of 2 to 6. Each fruit is slightly curved (2 to 4 mm long), with a short persistent style, and a keel that is entire or more frequently in the form of a toothed crest.

Horned Pondweed is found in both fresh (ponds, lakes, streams) and brackish water.  Mature fruits are relatively common and presumably horned pondweed is dispersed and may regrow from seed.

Not your weed?  Return to Step 2: Weed Selector

Select from the following products which control Horned Pondweed:

AQUATHOL - Semi-selective herbicide effectively controls Coontail, Eurasian Milfoil, Hydrilla, Naiads, and all Pondweeds.

HYDROTHOL - Controls Algae and many weed species, including Coontail, Elodea, Eurasian Milfoil, Hydrilla, Naiads, and all Pondweeds.

REWARD - Useful for control of almost all aquatic plant species including Pondweeds and Cattails.  Does not control Algae or Water Lilies.

SONAR -  Effectively controls Horned Pondweed and most other submerged aquatic weeds.  Does not control most emergent species like Cattail and Water Lilies or algae.

WEEDTRINE-D - Broad Spectrum aquatic herbicide.  Useful for control of most submerged vegetation species.  Does not control Algae, Cattails, Hydrilla, or Water Lilies.

Not Sure? - Contact an expert from Harrietta Hills.  Either Email info@harriettahills.com, or call 231-389-2514.  Our technical staff will be happy to assist you.

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Weed Solution Wizard - Step 3j of 3