Eastern Forest Threat Center

Threat Summary

Your search for Maryland returned 200 threats in the following categories:

Invasive Plants (149 threats)
Insects (24 threats)
Diseases (13 threats)
Climate (5 threats)
Loss of Open Space (3 threats)
Pollution (3 threats)
Wildland Fires (2 threats)
Unmanaged Recreation (1 threat)

SEARCH RESULTS

THREAT	LATIN NAME
INVASIVE PLANTS		Back to Top
Amur Honeysuckle	Lonicera maackii
Arrow Bamboo	Pseudosasa japonica
Autumn Olive	Elaeagnus umbellata
Bearded Beggarticks	Bidens aristosa
Beefsteak Plant	Perilla frutescens
Bell's Honeysuckle	Lonicera x bella
Bigleaf Periwinkle	Vinca major
Bird's Foot Trefoil	Lotus corniculatus
Bittersweet Nightshade	Solanum dulcamara
Black Swallowwort	Cynanchum louiseae
Border Privet	Ligustrum obtusifolium
Brown Knapweed	Centaurea jacea
Bull Thistle	Cirsium vulgare
Butterfly Bush	Buddleja davidii
Callery Pear	Pyrus calleryana
Canada Thistle	Cirsium arvense
Carolina Fanwort	Cabomba caroliniana
Cheatgrass	Bromus tectorum
Chinese Elm	Ulmus parvifolia
Chinese Lespedeza	Lespedeza cuneata
Chinese Privet	Ligustrum sinense
Chinese Silvergrass	Miscanthus sinensis
Chinese Wisteria	Wisteria sinensis
Chinese Yam	Dioscorea oppositifolia
Chocolate Vine	Akebia quinata
Coltsfoot	Tussilago farfara
Common Barberry	Berberis vulgaris
Common Buckthorn	Rhamnus cathartica
Common Bugle	Ajuga reptans
Common Burdock	Arctium minus
Common Chickweed	Stellaria media
Common Mullein	Verbascum thapsus
Common Periwinkle	Vinca minor
Common Reed	Phragmites australis
Common Tansy	Tanacetum vulgare
Common Teasel	Dipsacus fullonum
Crack Willow	Salix fragilis
Crown Vetch	Coronilla varia
Cutleaf Blackberry	Rubus laciniatus
Cypress Spurge	Euphorbia cyparissias
Cypressvine Morningglory	Ipomoea quamoclit
Dame's Rocket	Hesperis matronalis
Elecampane	Inula helenium
English Ivy	Hedera helix
Eurasian Water Milfoil	Myriophyllum spicatum
European Mountain Ash	Sorbus aucuparia
European Privet	Ligustrum vulgare
Field Bindweed	Convolvulus arvensis
Fuzzy Pride-of-Rochester	Deutzia scabra
Garden Valeriana	Valeriana officinalis
Garlic Mustard	Alliaria petiolata
Giant Knotweed	Polygonum sachalinense
Giant Reed	Arundo donax
Glossy Buckthorn	Rhamnus frangula
Glossy Privet	Ligustrum lucidum
Goat's Rue	Galega officinalis
Golden Bamboo	Phyllostachys aurea
Goutweed	Aegopodium podagraria
Ground Ivy	Glechoma hederacea
Guelder Rose	Viburnum opulus
Hairy Vetch	Vicia villosa
Hoary False Madwort	Berteroa incana
Horse Chestnut	Aesculus hippocastanum
Houndstongue	Cynoglossum officinale
Hydrilla	Hydrilla verticillata
Japanese Barberry	Berberis thunbergii
Japanese Bristlegrass	Setaria faberi
Japanese Clover	Kummerowia striata
Japanese Honeysuckle	Lonicera japonica
Japanese Hop	Humulus japonicus
Japanese Knotweed	Polygonum cuspidatum
Japanese Pachysandra	Pachysandra terminalis
Japanese Privet	Ligustrum japonicum
Japanese Spiraea	Spiraea japonica
Japanese Wisteria	Wisteria floribunda
Jimsonweed	Datura stramonium
Johnsongrass	Sorghum halepense
Jointhead Grass	Arthraxon hispidus
Kudzu	Pueraria montana
Leafy Spurge	Euphorbia esula
Leatherleaf Mahonia	Mahonia bealei
Lesser Celandine	Ranunculus ficaria
Linden Arrowwood	Viburnum dilatatum
Macartney Rose	Rosa bracteata
Mile-A-Minute Weed	Persicaria perfoliata
Moneywort	Lysimachia nummularia
Morrow's Honeysuckle	Lonicera morrowii
Multiflora Rose	Rosa multiflora
Musk Thistle	Carduus nutans
Narrow-leaved Cattail	Typha angustifolia
Nepalese Browntop	Microstegium vimineum
Norway Maple	Acer platanoides
Orange Hawkweed	Hieracium aurantiacum
Oriental Bittersweet	Celastrus orbiculatus
Oriental Ladysthumb	Polygonum caespitosum
Oxeye Daisy	Leucanthemum vulgare
Paper Mulberry	Broussonetia papyrifera
Pará Grass	Urochloa mutica
Piedmont Bedstraw	Galium pedemontanum
Poison Hemlock	Conium maculatum
Porcelainberry	Ampelopsis brevipedunculata
Princesstree	Paulownia tomentosa
Purple Loosestrife	Lythrum salicaria
Purple Star Thistle	Centaurea calcitrapa
Quackgrass	Elymus repens
Queen Anne's Lace	Daucus carota
Reed Canary Grass	Phalaris arundinacea
Ricefield Flatsedge	Cyperus iria
Rose of Sharon	Hibiscus syriacus
Rush Skeletonweed	Chondrilla juncea
Russian Olive	Elaeagnus angustifolia
Russian Thistle	Salsola kali
Scotch Broom	Cytisus scoparius
Scotch Thistle	Onopordum acanthium
Scots Pine	Pinus sylvestris
Sheep Sorrel	Rumex acetosella
Shepherd's Purse	Capsella bursa-pastoris
Shrubby Lespedeza	Lespedeza bicolor
Siberian Elm	Ulmus pumila
Silktree	Albizia julibrissin
Small Broomrape	Orobanche minor
Spiny Plumeless Thistle	Carduus acanthoides
Spotted Knapweed	Centaurea biebersteinii
St. Johnswort	Hypericum perforatum
Star-of-Bethlehem	Ornithogalum umbellatum
Sweet Autumn Virginsbower	Clematis terniflora
Sweet Cherry	Prunus avium
Sweet-Breath-of-Spring	Lonicera fragrantissima
Sycamore Maple	Acer pseudoplatanus
Tall Fescue	Lolium arundinaceum
Tatarian Honeysuckle	Lonicera tatarica
Tree-of-Heaven	Ailanthus altissima
Velvetleaf	Abutilon theophrasti
Wayfaring tree	Viburnum lantana
Weeping Lovegrass	Eragrostis curvula
Weeping Willow	Salix x sepulcralis
White Mulberry	Morus alba
White Poplar	Populus alba
Whitetop	Cardaria draba
Wild Chervil	Anthriscus sylvestris
Wild Garlic	Allium vineale
Wild Parsnip	Pastinaca sativa
Wineberry	Rubus phoenicolasius
Winged Burning Bush	Euonymus alatus
Winter Creeper	Euonymus fortunei
Yellow Iris	Iris pseudacorus
Yellow Starthistle	Centaurea solstitialis
Yellow Sweetclover	Melilotus officinalis
Yellow Toadflax	Linaria vulgaris
INSECTS		Back to Top
Banded Elm Bark Beetle	Scolytus schevyrewi
Birch Leafminer	Fenusa pumila
Black Turpentine Beetle	Dendroctonus terebrans
Columbian Timber Beetle	Corthylus columbianus
Eastern Five-spined Engraver	Ips grandicollis
Eastern Six-spined Engraver	Ips calligraphus
Elm Leaf Beetle	Xanthogaleruca luteola
Elongate Hemlock Scale	Fiorinia externa
Emerald Ash Borer	Agrilus planipennis
Fall Webworm	Hyphantria cunea
Gypsy Moth	Lymantria dispar
Hemlock Woolly Adelgid	Adelges tsugae
Introduced Pine Sawfly	Diprion similis
Larch Sawfly	Pristiphora erichsonii
Nantucket Pine Tip Moth	Rhyacionia frustrana
Pales Weevil	Hylobius pales
Pear Thrips	Taeniothrips inconsequens
Pine Shoot Beetle	Tomicus piniperda
Red Oak Borer	Enaphalodes rufulus
Small Southern Pine Engraver	Ips avulsus
Smaller European Elm Bark Beetle	Scolytus multistriatus
Southern Pine Beetle	Dendroctonus frontalis
Twolined Chestnut Borer	Agrilus bilineatus
White Pine Weevil	Pissodes strobi
DISEASES		Back to Top
Annosus Root Rot	Heterobasidion annosum
Armillaria Root Disease	Armillaria mellea
Beech Bark Disease	Neonectria coccinea var. faginata
Butternut Canker	Sirococcus clavigignenti-juglandacearum
Chestnut Blight	Cryphonectria parasitica
Diplodia Blight of Pines	Sphaeropsis sapinea
Dogwood Anthracnose	Discula destructiva
Dutch Elm Disease	Ophiostoma ulmi
Fusiform Rust	Cronartium fusiforme
Littleleaf Disease
Oak Decline
Oak Wilt	Ceratocystis fagacearum
White Pine Blister Rust	Cronartium ribicola
CLIMATE		Back to Top
Climate Change
Drought
Flooding
Hurricanes
Ice Storms
LOSS OF OPEN SPACE		Back to Top
Conversion
Fragmentation
Parcellation
POLLUTION		Back to Top
Acid Deposition
Ozone
Salt Injury
WILDLAND FIRES		Back to Top
Lack of Fuels Treatment
Wildland Arson
UNMANAGED RECREATION		Back to Top
Off-Highway Vehicles

The items above are part of an initial list of forest threats. These should not be interpreted as the top threats affecting forests in the Eastern U.S. We appreciate your feedback as additional forest threats are added to this page and as we work to further develop the forest threat summary viewer tool.