Aquatic Plants

Information on pond management and aquatic plants, including identification, chemical or biological control of aquatic plants and harmful algae blooms. Tips on invasive species, such as European water chestnut, pondweeds, filamentous algae.

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Innovative Controls for Algae and Aquatic Plant Growth
Innovative Controls for Algae and Aquatic Plant Growth - Webinars Webinars
Free
Joe Gallagher from Ecological Solutions, Inc., presents information on methods to control nuisance algae and aquatic plant growth. More
Five Steps to a Healthier Pond
Five Steps to a Healthier Pond - Webinars Webinars

Five Steps to a Healthier Pond

Watch Now

1 hour

Free
Penn State Extension Water Resources Specialist covers five steps pond managers can use to create a healthier PA pond. More
Controlling Aquatic Plants and Algae in Ponds and Lakes
Controlling Aquatic Plants and Algae in Ponds and Lakes - Webinars Webinars
Free
Penn State Extension Water Resources Educator, Susan Boser, talks about how to control aquatic plants and algae. More
Management of Aquatic Plants DVD
Management of Aquatic Plants DVD - Guides and Publications Guides and Publications
$5.00
This DVD highlights the benefits of aquatic plants and algae along with suitable strategies to control excessive growth when it occurs. More
Photo: Susan Boser, Penn State University
Choosing an Aquatic Herbicide: One Size Doesn’t Fit All - News News
During the warm weather months, Extension Educators help identify nuisance pond plants and offer advice on eliminating them from the pond. More
Mosquito fern can cover the pond surface. Photo: Adam McClain, Adams County Conservation District
Mosquito Fern in Pennsylvania Ponds - Articles Articles
Mosquito fern is a Pennsylvania native waterfern that can be a nuisance in your pond. More
Aquatic Pesticide Management: Using Aquatic Herbicides for Pond Weeds and Algae
Aquatic Pesticide Management: Using Aquatic Herbicides for Pond Weeds and Algae - Online Courses Online Courses
$59.00
Manage nuisance pond plant and algae growth. Learn about measurements, plant identification and control methods using an integrated pest management approach. More
Managing Your Pond or Lake
Managing Your Pond or Lake - Webinars Webinars
Free
Susan Boser from Penn State Extension explains the aspects of good pond management. More
Harmful Algae Blooms
Harmful Algae Blooms - Webinars Webinars

Harmful Algae Blooms

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Free
Penn State Extension Water Resources Specialist, Bryan Swistock, discusses the causes and problems associated with harmful algal blooms in PA. More
Results from a Penn State Study of Harmful Algae Blooms in Ponds
Results from a Penn State Study of Harmful Algae Blooms in Ponds - Webinars Webinars
Free
Algae is one of the most common problems reported by pond owners. Of greatest concern are blooms caused by microscopic blue-green algae which can produce toxins. More
Pond Management School
Pond Management School - Workshops Workshops
Regional Green Industry Professionals are invited to join Penn State Extension and Bowman’s Hill Wildflower Preserve for Pond Management School. More
An aquatic herbicide being applied with a backpack sprayer.
Permit Requirement for Use of An Aquatic Herbicide in Ponds - Articles Articles
If you use any aquatic herbicide on your pond to control algae or aquatic plants, you must first obtain a state permit. More
Identifying Aquatic Plants
Identifying Aquatic Plants - Videos Videos
This video will look at the four categories of pond plants, and some of the most common aquatic plants that are found in Pennsylvania. More
Water Chestnut Rosette Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org
Focus on Aquatic Invasive Species – European Water Chestnut - Articles Articles
The European Water chestnut has nothing to do with the edible variety. It is a rooted aquatic plant that can dominate ponds, shallow lakes, and rivers. More
Water chestnut investation choking a pond. Photo: Pat Rector, Rutgers University Cooperative Extension
Aquatic Invasive Species in Pennsylvania - Videos Videos
Several Aquatic Invasive Species of particular concern in Pennsylvania are discussed, and their identifying characteristics reviewed. More
Pond Ecology and the Role of Aquatic Plants
Pond Ecology and the Role of Aquatic Plants - Videos Videos
This video provides an overview of aquatic plants. More
Physical Control of Aquatic Plants
Physical Control of Aquatic Plants - Videos Videos
There are a variety of physical control strategies that can be employed. Physically harvesting aquatic plants can have a positive, long-lasting effect. More
Getting to Know Your Pond
Getting to Know Your Pond - Videos Videos
Proper pond management practices should always start with an assessment and inspection of the current conditions in the pond. More
Chemical Control of Aquatic Plants
Chemical Control of Aquatic Plants - Videos Videos
Herbicides are often the first thing pond owners turn to when nuisance aquatic plants appear in their ponds. More
Causes and Prevention of Aquatic Plant and Algae Growth
Causes and Prevention of Aquatic Plant and Algae Growth - Videos Videos
When plants and algae grow abundantly, pond and lake owners often think about ways to eliminate the offending plant. Nutrient control is the long term solution. More
Biological Control of Aquatic Plants
Biological Control of Aquatic Plants - Videos Videos
There are a few biological methods, that when applied correctly can be very effective and environmentally friendly to your pond. More
Common duckweed (Lemna minor)
Aquatic Plant Identification - Videos Videos
While aquatic plants and algae may interfere with pond uses, they also serve vital roles in supporting the fish and animal life that make up the pond ecosystem. More
Photo: Bryan Swistock, Penn State University
Winterkill in Ponds - Articles Articles

Winterkill in Ponds

Diane Oleson, M.S.

In the winter water gets much colder and ice may cover the top of the pond for an extended period of time. How does this affect the animals living in the pond? More
Pond coated with duckweed. Photo: Diane Oleson, Penn State Extension
Pond Scum - Duckweed and Watermeal - Articles Articles
Learn about the common "pond scum" types of duckweed and watermeal. More
Management of Aquatic Plants
Management of Aquatic Plants - Guides and Publications Guides and Publications

Management of Aquatic Plants

Bryan Swistock

32

$4.00
Understand the importance and benefits of aquatic plants, and learn how to manage them in your pond. More
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