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 | Written 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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Maryland Oaks Would Rather “See No Weevil”

AsiaticOakWeevil Photo courtesy of Chris Joll © 2017

Contact: Cathy Stragar, MDA | Catherine.Stragar@maryland.gov Photo courtesy of Chris Joll © 2017ANNAPOLIS, MD (August 01, 2017) – A minor player on the invasive team’s bench of heavy hitters, the Asiatic oak weevil is still an invader to watch, especially for forest managers and invasion ecologists. Indigenous to Japan, the Asiatic oak weevil was first detected […]

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Not a Professional Scientist? You Can Contribute Regardless!

MAEDN 730x410

Contact: Kerrie Kyde kerrie.kyde@maryland.gov and Jil Swearingen jilswearingen@gmail.com ANNAPOLIS, MD (July 04, 2017) – Even if you don’t have a degree in science, you can help support scientific research through a number of “citizen science” efforts. For invasive species research in Maryland, one of the best ways to help is through data collection. Collecting data is […]

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No Pot of Gold at the End of THIS Rainbow!

Iris pseudacorus

Contact: Dawn Miller | Dawn.Miller2@maryland.gov Photo: Nancy Loewenstein, Auburn University, Bugwood.org (cropped)ANNAPOLIS, MD (June 04, 2017) – Although it is an attractive herbaceous perennial named after Iris, the Greek goddess of the rainbow, yellow flag iris is a wolf in sheep’s clothing.  Because of its invasive tendencies and negative impacts in natural and agricultural systems, Iris pseudacorus, […]

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An Incisive Invader

Corydalis incisa

Contact: Damien Ossi | Damien.Ossi@dc.gov Flowers and foliage of Corydalis incisa Gary Fleming, Virginia Department of Natural Resources, Bugwood.orgANNAPOLIS, MD (May 01, 2017) – Incised fumewort (Corydalis incisa), also known as purple keman, is a biennial, shade-tolerant forb in the poppy family, related to bleeding-hearts and to the showy garden perennial spring fumewort. It is native […]

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Choose Your Viburnums with Care

Doublefile viburnum

Contact: Sylvan Kaufman | Sylvan.Kaufman@gmail.com Doublefile viburnum (Viburnum plicatum tomentosum) Richard Webb, Bugwood.orgANNAPOLIS, MD (April 01, 2017) – Gardeners love viburnums for their white spring flowers, compact growth, and colorful fall fruits and foliage. Few gardeners know that some viburnums have become invasive plants and should be avoided. Linden viburnum (Viburnum dilatatum), doublefile viburnum or Japanese […]

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Sudden Oak Death Could Be Back in Maryland, and You May Have It.


Contact: Ramesh R Pokharel, Plant Pathologist, Maryland Department of Agriculture| ramesh.pokharel@maryland.gov Leaf spot and blight in Rhododendron caused by P. ramorum. Leaf blight leading to dieback in Kalmia ‘Olympic Wedding.’ANNAPOLIS, MD (January 05, 2017) – Sudden oak death, a relatively new disease, caused by the pathogen Phytophthora ramorum, was found for the first time in 1995, infecting oaks in California. The […]

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Invasive Species: They’ve Got “Good Genes”

Callery Pear Field

Contact: Matt Salo, Naturalist, Town of CheverlyKerrie L. Kyde, Maryland DNR Kerrie.Kyde@maryland.gov Callery Pear (Pyrus calleryana) invasion of an open field in Maryland. Photo: K. KydeANNAPOLIS, MD (December 01, 2016) – Invasive plants cost the U.S. economy billions of dollars each year due to losses they incur in agriculture, forestry, fisheries and the recreation industry, plus […]

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Barriers to BSal: Averting the Apocalypse for North American Salamanders

Red-Spotted Newt

Contact: Scott Smith | scott.smith@maryland.gov Red-Spotted Newt (Notophthalmus v. viridescens). Photo: John White.ANNAPOLIS, MD (November 01, 2016) – Chytrid fungus (Batrachochytrium dendrobatidis or Bd), has been called the greatest threat to global amphibian biodiversity, having caused the disappearance of more than 200 of the world’s frog species since the 1970s. Now there’s a frightening “new kid on the […]

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King of the (Aquatic) Beasts? Lionfish in North America

Lion Fish

Contact: Jonathan McKnight | jonathan.mcknight@maryland.gov Photo courtesy of Don DeMaria, USGSANNAPOLIS, MD (October 01, 2016) – Lionfish have a lot going for them. They are a spectacular little fish, highly variable in coloration and carrying a halo of ornate fin spines that appear both delicate and menacing. Their spines can deliver a powerful toxic assault on […]

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