See All Pond Management

Planktonic algae floats in the water column and can sometimes be confused with muddy water. It causes the water to look green, brown, or reddish in color.

The links below provide a listing of aquatic or wetland plants considered to be noxious weeds by the federal government or Pennsylvania.

Ponds naturally attract diverse wildlife. Their presence provides significant benefits but presents management challenges at times.

This document describes parameters included in the Penn State pond/lake water test kit to help pond owners detect common water quality problems.

Over half of Pennsylvania pond owners have reported having issues with overabundant aquatic plants and algae. This article outlines several strategies for preventing nuisance algae and aquatic plant problems in farm ponds.

This common aquatic plant is a part of many Pennsylvania pond ecosystems.

This information is intended to help select native aquatic plant alternatives and avoid invasive plant species. This guide is intended as a portable reference.

Unwanted, overabundant aquatic plant and algae growth is one of the most common management issues pond owners face.

A pond is a source of tranquility and natural beauty in your outdoor space, but it can also be a source of concern, especially for families with young children.

These commonly-encountered snakes are a part of the pond ecosystem.

This invasive aquatic plant was previously reported in only eleven northwestern and eastern Pennsylvania counties.

This majestic wading bird can have an impact on pond fish populations.

Tips to help rural property owners complete DEP’s application for use of algaecides or herbicides in private ponds in Pennsylvania.

There are a variety of physical control strategies that can be employed. Physically harvesting aquatic plants can have a positive, long-lasting effect.

A water garden is fundamentally an outdoor aquarium. The gardener needs to manage the pH, nutrients, and organisms introduced into the system.

General information on all aspects of pond construction and maintenance for building a new pond or taking care of an existing pond used for swimming, irrigation, fishing, or other activities.

Although muskrats are an important part of native ecosystems, their burrowing and foraging activities can damage farm ponds and lake impoundments.

A checklist of items for pond owners and managers to consider to keep their ponds functioning properly and safely.

A common visitor to Pennsylvania ponds and lakes, Canada Geese can present challenges to pond owners.

Penn State Extension has many written and video resources to help with the proper management of ponds and lakes.

Learn about harmful algae blooms and their possible toxins during this live webinar.

As you paddle on a local lake or cast a rod in a nearby stream, remember to take appropriate precautions necessary to slow the spread of aquatic invasive species (AIS).

The Master Watershed Steward Program provides extensive training in watershed management to volunteers who, in return, educate the community about watershed stewardship based on university research and recommendations.

The Master Well Owner Network is a network of trained volunteers dedicated to promoting the proper construction and maintenance of private water systems in Pennsylvania and throughout the Mid-Atlantic Region.

Learn basic pond maintenance and how to address common pond issues including excessive plant and algae growth, nuisance wildlife, and fishery management.