Trapped Again? A New Species of Water Chestnut Discovered in the Potomac River

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Trapa sp. 2-horned fruits. ANNAPOLIS, MD (June 1, 2018) – Eurasian water chestnut (Trapa natans) has been present in the United States since the latter half of the 19th century and is a well-known invasive species.  Once water chestnut shows up in a water body, it can quickly spread to cover large areas and, if […]

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Are invasive plants “bugging” you?

Amur Honeysuckle

Contact: Marc Imlay, Maryland-National Capital Park and Planning Commission | ialm@erols.com Adult black-legged tick (deer tick), Ixodes scapularis.Photo: Scott Bauer, USDA Agricultural Research ServiceWhat dangers may lurk in these invasive shrubs?Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.orgANNAPOLIS, MD (May 1, 2018) – Many shrubs first introduced as desirable landscape species have been found to take over […]

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The cherry blossoms have arrived! Some good, some bad.

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Contact: Bud Reaves, Anne Arundel County | ipreav00@aacounty.org Flowers of the invasive sweet cherry, Prunus avium. Photo: Robert Vidéki, Doronicum Kft., Bugwood.orgANNAPOLIS, MD (April 3, 2018) – Every year in late March and early April, cherry trees burst forth into bloom in Maryland.  Some of the first to bloom in the spring, cherries are among the showiest flowers in […]

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This little piggy went to Maryland?

Wild boar

Contact – Jonathan McNight, Maryland, DNR – Maryland Wildlife and Heritage Service | jonathan.mcknight@maryland.gov Photo: USDA APHIS Wildlife ServicesANNAPOLIS, MD (March 1, 2018) – In the last week of January 2018, one of a pair of free-ranging pigs (Sus scrofa) attacked and bit a citizen in Frederick County, Maryland.  The porcine perpetrator was subsequently killed by […]

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Not so Heavenly

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Contact: Colleen Kenny, Maryland DNR – Forest Service | colleen.kenny@maryland.gov Nandina domestica foliage and fruit. Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.orgANNAPOLIS, MD (February 1, 2018) – As you walk through the woods this February, most plants will appear dormant, but heavenly bamboo (Nandina domestica) will be on full display. While often used as an […]

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Red Alert: Spotted lanternfly

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Contact: Colleen Kenny, Maryland DNR – Forest Service | colleen.kenny@maryland.gov Pennsylvania Department of Agriculture , Bugwood.orgANNAPOLIS, MD (January 1, 2018) – Spotted lanternfly (Lycorma delicatula) is an invasive plant-hopping insect that attacks and feeds on a wide variety of fruit and tree species. Spotted lanternfly has been spreading throughout southeastern Pennsylvania, and because it was […]

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Good for what “Ails” you? A gift from Heaven?

Agrilus smaragdifrons. Photo by Antonio Liberta, 2014; used with permission.

Contact: Jil Swearingen, Invasive Species Consultant, Cheverly, Maryland | jilswearingen@gmail.com ANNAPOLIS, MD (December 1, 2017) – Tree of heaven (Ailanthus altissima) is a highly invasive plant species native to China and East Asia, that impacts natural areas, agricultural areas, and urban areas. It was first introduced into the U.S. around 1784 by William Hamilton at his […]

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Misgivings over Miscanthus

The distinctive inflorescence of Chinese silver grass. Photo by James H. Miller, USDA Forest Service, Bugwood.org.

Contact:  Michael Ellis, M-NCPPC | Michael.Ellis@pgparks.com | Writen by Kerrie Kyde. The distinctive inflorescence of Chinese silver grass. Photo by James H. Miller, USDA Forest Service, Bugwood.org.ANNAPOLIS, MD (November 1, 2017) – Tall silver and white and even purple plumes of grass nodding from old fields and road edges may catch your eye as they are tossed […]

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Where Have all the “Flowers” Gone?

Before — Exit Ramp from I-495 to MD185 (SHA Photo)

Contact: Shelley Brunelle, Maryland SHA | SBrunelle@sha.state.md.us ANNAPOLIS, MD (October 01, 2017) – When did you last travel along congested I-495, I-95 between Washington DC and Baltimore, or on US 50 toward Annapolis, and notice something missing? Missing are certainly not angry red taillights or flashing blue lights or even cautious amber work lights. Missing is […]

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A Wavyleaf Wannabe

Leaves of Arthraxon fully encircle the stem, distiguishing the species from many other invasive grasses of Maryland. Photo by K. L. Kyde.

Contact Marc Imlay: ialm@erols.com | Writen by Marc Imlay and Kerrie Kyde. Seed-bearing racemes of Arthraxon hispidus. Photo by K. L. Kyde. Leaves of Arthraxon fully encircle the stem, distiguishing the species from many other invasive grasses of Maryland. Photo by K. L. Kyde.ANNAPOLIS, MD (September 01, 2017) – In the last days of summer, walking in […]

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