Aquacide Blog — weed control

Water Pennywort (Hydrocotyle umbellata) is a very common perennial aquatic weed that will form dense mats that creep along shorelines of ponds, lakes and marshes. It has bright green round leaves that alternate on a long stem. These circular leaves are typically the size of a half dollar.  Long stems are attached at center of each leaf. Water Pennywort has delicate clusters of tiny 5-petaled white flowers. It reproduces from seed or roots. There is no known biological method of control. 3 control methods: 1)  Physical removal is an option for seed and root reduction. This method can be difficult...

Bulrush (scripus) is an emersed, perennial, grass-like weed that grows in shallow water. Bulrush grows up to 10 feet tall in colonies from rhizomes. A leafless stem can be triangular or round and comes to a point at the tip. Loose clusters of brown flowers and seeds gather just below the tip. There is no known biological control option. Control methods: 1) Weed raking and weed cutting is an option for seed and root reduction. This method can be difficult because new weeds can sprout from seeds and root fragments left behind. 2) Aquacide Pellets are a systemic aquatic herbicide that is best...

Reed Grass (Phragmites) is a large, emersed, perennial grass that grows in shallow waters of marshes, creeks, ponds and lakes. Common Reed Grass can grow up to 20 feet tall dense clumps from rhizomes. A round, hollow stem has leaves that are 10 inches long and 1-2 inches wide. Loose, beige, flower spikes have plume-like tufts of seeds with silky hair.  Seeds drop in the fall and germinate in spring on wetland soil.  Most vegetation spreads from creeping rhizomes.  There is no known biological control option. Control methods: 1)  Weed raking and weed cutting is an option for seed and root reduction. Mowing...

Horned Pondweed (Zannichellia palustris) is a submersed aquatic weed found in every state in the continental United States. It can be found in shallow freshwater lakes and ponds. Horned Pondweed is a delicate, underwater perennial with branched slender stems that sprout from creeping rhizomes. Long thread-like leaves are smooth edged without teeth. They grow from ½ to 3 inches long and are oppositely arranged or whorled on the stem. Leaves gradually taper to a point at the tip. Tiny banana shaped, slightly curved seeds are flattish in shape and serrated on one side.  They attach to the stem at the...

A customer recently contacted us regarding weed & algae control. Below is the question and our response. Question: I have a ½-1 acre pond that is becoming infested with the “brushy” course type pond weed. The trouble is…I also have a large population of trout in it. Is there anything I can use that will eliminate those weeds without killing my trout?? A sincere thanks in advance…GG Answer: We stock a large variety of pond weed control options.  All of these aquatic herbicides, when applied according to label directions, will not harm fish including trout. It is impossible to make a...