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

Lion Fish

Contact: Jonathan McKnight | 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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The “nom de plume” of plume grass is: EMERGING INVADER


Contact: John Peter Thompson | ORKerrie Kyde | Photo: The Nature Conservancy , The Nature Conservancy, Bugwood.orgANNAPOLIS, MD (September 01, 2016) – Plume grass, or Ravennagrass (Saccharum ravennae, and many synonyms) is a botanical cousin to sugar cane. But its escape from ornamental plantings to naturalized patches is not so sweet. Reported as escaped in natural […]

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Ailanthus’ Achilles Heel: A Poisoned Arrow in a Wilt Fungus


Contact: Aaron Cook | Healthy Ailanthus altissima, producing prolific seeds and samaras which can be seen much of the year. Photos: Leslie J. Mehrhoff, University of Connecticut,, MD (August 01, 2016) – Tree-of-heaven (Ailanthus altissima), also known as ailanthus, shumac, stinking sumac, stink-tree, copal tree, or Chinese sumac, is a common alien weed in […]

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Should Bee-Bee Tree be Avoided?

Bee bee tree branches

Contact: Sylvan Kaufman | Photos: Pat Breen, Oregon State University.ANNAPOLIS, MD (July 01, 2016) – One way to prevent new plant invasions is to be on the lookout for species that seem to be spreading into natural areas a little too aggressively. Which plants will be the next tree of heaven, running bamboo, or kudzu? […]

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Boaters Beware!

Clean your gear

Contact: Jay Kilian, Maryland Department of Natural Resources, Resource Assessment Service | Invasive aquatic plants such as Hydrilla can easily become entangled in boat props and trailers. If not removed by informed boaters, these plants and other hitchhikers can be moved and introduced into new waters. Photo: Emily Johnstone, Ontario Federation.ANNAPOLIS, MD (June 01, 2016) […]

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Shining a Spotlight on Spotted Lanternfly

Spotted lanternfly adult

Contact: Robert Tatman, MD Department of Agriculture | Photo: Lawrence Barringer, Pennsylvania Department of Agriculture, Bugwood.orgANNAPOLIS, MD (May 01, 2016) – The spotted lanternfly, (Lycerma delicatula) is an invasive planthopper. It attacks many hosts including grape, pine, stone fruits and tree of heaven and has the potential to greatly impact the grape, fruit tree and […]

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The Gift That Keeps on Giving

Emerald ash borer adult

Contact: Colleen.Kenny, MD Dept. of Natural Resources – Forest Service | Emerald ash borer adult. Photo: Leah Bauer, USDA Forest Service Northern Research Station,”D”-shaped exit holes on ash trees are a good indication of EAB infestation.(Cropped) Photo: Kenneth R. Law, USDA APHIS PPQ, Bugwood.orgANNAPOLIS, MD (April 01, 2016) – The emerald ash borer (EAB) […]

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Criteria for Deliria?!

wisteria leaves 700x410

Contact: Michael Ellis, M-MCPPC | Chinese Wisteria infestation. Photo: Chris Evans, University of Illinois, Chinese Wisteria. Photo: Kerrie Kyde, MD DNRANNAPOLIS, MD (March 01, 2016) – Spring is nearly here! Landscapes across Maryland will be covered in beautiful blooms of all kinds. But invasive wisteria species really take that concept to the next […]

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“I’m Back!”

gypsy moth1 730x410

Contact: Bob Tatman, MDA-FPM | Photo: Jon Yuschock, Bugwood.orgANNAPOLIS, MD (February 01, 2016) – The gypsy moth was brought to Medford, Massachusetts by amateur naturalist Leopold Trouvelot in the late 1860s. Cotton was in short supply in the aftermath of the Civil War and Trouvelot hoped to use the webbing of the gypsy moth […]

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The Waterwheel… Turning Over North American Wetlands

Aldrovanda1 730x410

Contact: Wesley Knapp, Maryland Department of Natural Resources | ANNAPOLIS, MD (January 1, 2016) – We’ve never seen an invasive species quite like this one before. The waterwheel (Aldrovanda vesiculosa L.) is an herbaceous carnivorous aquatic plant closely related to sundews (Drosera spp.) and Venus flytraps (Dionaea muscipula). It catches animal prey through an […]

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