Archived Invaders of the Month


More archived invaders coming soon.


Year Month Topic Scientific name Title
2018 February Heavenly bamboo, sacred bamboo, nandina Nandina domestica Not So Heavenly
2018 January Spotted lanternfly Lycorma delicatula Red Alert: Spotted lanternfly
2017 December Agrilus smaragdifrons Agrilus smaragdifrons Good for what “Ails” you? A gift from Heaven?
2017 November Chinese silver grass Miscanthus sinensis Misgivings over Miscanthus
2017 October Invasive & Noxious Weeds along Maryland's Interstate Highways Various spp. Where Have all the “Flowers” Gone?
2017 September Small carpetgrass Arthraxon hispidus A Wavyleaf Wannabe
2017 August Asiatic oak weevil Cyrtepistomus castaneus Maryland Oaks Would Rather “See No Weevil”
2017 July Citizen science Various spp. Not a Professional Scientist? You Can Contribute Regardless!
2017 June Yellow flag iris Iris pseudacorus No Pot of Gold at the End of THIS Rainbow!
2017 May Incised fumewort Corydalis incisa An Incisive Invader
2017 April Viburnums Viburnum spp. Choose Your Viburnums with Care
2017 January Sudden Oak Death Phytophthora spp. Sudden Oak Death Could Be Back in Maryland, and You May Have It.
2016 December Genetics Various spp. Invasive Species: They’ve Got “Good Genes”
2016 November BSal Batrachochytrium salamandrivorans Barriers to BSal: Averting the Apocalypse for North American Salamanders
2016 October Lionfish Pterois spp. King of the (Aquatic) Beasts? Lionfish in North America
2016 March Exotic Wisterias Wisteria sinensis and Wisteria floribunda Criteria for Deliria?!
2016 February Gypsy moth Lymantria dispar “I’m Back!”
2016 January Waterwheel plant Aldrovanda vesiculosa The Waterwheel… Turning Over North American Wetlands
2015 December Preventing Invaders Various spp. Preventing Invaders
2015 November Italian arum Arum italicum Lords and Ladies Misbehaving
2015 October Porcelainberry Ampelopsis brevipedunculata Porcelainberry
2015 April Exotic Earthworms Various spp. Exotic Earthworms
2015 March Weed Warriors Various spp. Weed Warriors
2015 February White Nose Syndrome Pseudogymnoascus destructans* White Nose Syndrome
2015 January Zebra Mussels Dreissena polymorpha Zebra Mussels
2014 December Thousand Cankers Disease Geosmithia morbida Thousand Cankers Disease
2014 September Bushkiller Cayratia japonica Bushkiller
2014 January Biocontrols for Invasive Plants Various spp. Biocontrols for Invasive Plants
2013 October Spotted-Wing Drosophila Drosophila suzukii Spotting the Spotted-Wing Drosophila
2013 April Zebra Mussels Dreissena polymorpha Zebra Mussel
2013 January Chronic Wasting Disease Transmissible spongiform encephalopathy (TSE) Chronic Wasting Disease
2012 September Classroom Pets Various spp. Classroom Pets and Projects
2012 August Mile-a-Minute Weevil Rhinoncomimus latipes Biological Control Agent for Mile-a-Minute Weed
2012 July Aquatic hitchhikers Various spp. Clean Your Gear