Invasive Species


First Recorded Instance of Lake-wide Eradication Of Quagga Mussels

October 31st, 2019

Written by David Hammond, PhD and Gavin Ferris, Ecologist Low doses of EarthTec QZ ionic copper used in effort to eradicate quagga mussels from an entire Pennsylvania lake Zebra mussels (Dreissena polymorpha Pallas, 1771) and quagga mussels (D. rostriformis bugensis Andrusov, 1898), known collectively as dreissenid mussels, have established themselves as nuisance aquatic invasive species […]

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New Innovative Solutions in Your Lake Manager’s ‘Toolbox’

September 19th, 2019

AS SEEN IN Turf Magazine: Written by Shannon Junior, Ecologist Herbicides and algaecides have traditionally been used to maintain balanced ecosystems in lakes and ponds—but wouldn’t it be exciting if there was a new technology or process that could totally revolutionize the way we approach environmental problems in our communities? Industry leaders have long understood […]

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Case Study: New Highly-Selective Herbicide Used to Eradicate Milfoil

May 28th, 2019

Variable milfoil (Myriophyllum heterophyllum) is a highly invasive exotic plant that is threatening our freshwater ecosystems. If left unmanaged, it not only has the ability to impair ecological balance but will readily spread throughout a waterbody and to surrounding waterbodies, as it can easily be transported by heavy downstream water flow and on the boats […]

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Plant Doppelgangers: Invasive Plants Often Mistaken for Other Species

February 28th, 2019

Regions across the country are waging war on invasive aquatic plants, with a particular focus on preserving water access and usage. Unless designed for a specific safety purpose, waterbodies are supposed to support aquatic biota, including plants. However, many of these invading species are often mistaken for native plants that are important for a balanced or natural ecosystem. […]

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Upland, Wetland & Aquatic Plants Every Turf Manager Should Know About

February 26th, 2019

Written by Industry Expert David Riedl, Environmental Scientist Not only are turf managers responsible for the land, but quite often are tasked with overseeing the maintenance of the waterbodies on the property as well. Pond maintenance, in combination with turf management, opens the door to a plethora of issues most turf managers might not know […]

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Invasive Species Highlight: Mudmat

October 23rd, 2018

AS SEEN IN Northeast Aquatic Plant Management Society Nor’Easter Newsletter Written by Industry Experts Emily Mayer, Aquatic Biologist and Kate Arnao, seasonal team member  As its name suggests, mudmat (Glossostigma cleistanthum) is an invasive aquatic plant species that forms dense, green mats in littoral zones. The iconic bunny ear-shaped leaves of mudmat serve as a unique […]

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Are Zebra Mussels Harmful?

October 4th, 2018

Written by Industry Expert Bob Schindler, Aquatic Biologist Ecological impacts, habitat distinctions, and sustainable management options for Zebra and Quagga mussels in freshwater environments Widespread occurrences of both Zebra mussels (Dreissena polymorpha) and Quagga mussels (D. rostriformis bugensis) have been well documented since their initial confirmation within the Great Lakes during 1986 and 1991, respectively. […]

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Common Nuisance & Invasive Plants You May Be Mistaking for Waterlilies

September 4th, 2018

Yellow waterlily, white waterlily and watershield can play important roles in aquatic ecosystems when managed properly.  When you look out at your lake or pond, you may see some floating, broad-leaved plant species. The most common native species with floating leaves are yellow waterlily (Nuphar variegata), white waterlily (Nymphaea odorata) and watershield (Brasenia schreberi). Depending […]

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Invasive Species Highlight: Water Chestnut

August 6th, 2018

Water chestnut has invaded waterways from Canada to Virginia along the East Coast since its introduction in the 1870s. Water chestnut can be identified by its triangular serrated floating leaves arranged in a rosette pattern, radiating from a central stalk. The stalk is rooted to the bottom substrate and covered in feathery submersed leaves. These […]

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Invasive Species Highlight: Alligatorweed

July 5th, 2018

Alligatorweed (Alternanthera philoxeroides) is a perennial plant native to South America. It was first reported in the United States in 1897. Listed as a prohibited aquatic weed in many states, its growth has caused significant economic and ecological damage throughout the Southern United States. Alligatorweed reproduces in North America primarily through vegetative propagation, but seeds […]

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