Aquacide — Aquatic Weed Control: 3 Options for Bushy Pondweed Control

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Aquatic Weed Control: 3 Options for Bushy Pondweed Control

Published by Jamie Markoe on November 14, 2013 0 Comments

One of the most common submersed lake weeds is Bushy Pondweed.  Bushy Pondweed is a rooted native weed that grows up from the pond bottom.  It has thread-like narrow leaves oppositely arranged on slender, sparsely branched stems.  Lake weed identification can be made by the microscopic teeth along the leafs edge.  Bushy Pondweed leaves are also slightly broader at the base than tip.  This water weed can be found growing in depths of 10 feet or more. 

Bushy Pondweed reproduces by seed germination and fragmentation (tiny pieces of water weed that re-root).  It grows in any pond or lake but prefers water with a high mineral content (hard water) and can top out in 4-6 weeks.

Bushy Pondweed is a primary food for waterfowl and turtles. Fish love it!  It also provides shelter for small animals and fish.  However, dense mats of Bushy Pondweed reduce boat traffic, water recreation and block water flow in ditches and irrigation canals. 

3 ways to control Bushy Pondweed:

Grass Carp will consume Bushy Pondweed.  A one acre pond would require 20 Grass Carp.  Expect full control within 3 months.

Diquat dibromide (Weedtrine-D Liquid) and endothall (Aquathol Super K Granular & Hydrothol Granular) are 2 effective and approved chemical options.

Bushy Pondweed seeds imbedded in the lake or pond bottom may sprout after herbicide treatment.  Repeat treatment of your lake weeds may be needed to make good contact with all the foliage.

Please feel free to email me or post questions you may have and I will respond accordingly.

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