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View 100 of the World's Worst Invasive Alien Species

Acacia mearnsii/black wattle Acridotheres tristis/Indian Myna Aedes albopictus/tiger mosquito Anoplophora glabripennis/Asian longhorn beetle Anoplolepis gracilipes/crazy ant Anopheles quadrimaculatus/common malaria mosquito Aphanomyces astaci/crayfish plague Ardisia elliptica/shoebutton ardisia Arundo donax/reed grass Asterias amurensis/flatbottom seastar
Batrachochytrium dendrobatidis/chytrid frog fungus Banana bunchy top virus (BBTV) Bemisia tabaci/cotton whitefly Boiga irregularis/brown tree snake Rhinella marina/cane toad Capra hircus/goat Carcinus maenas/green crab Caulerpa taxifolia/caulerpa Cecropia peltata/trumpet tree Cervus elaphus/red deer
Cercopagis pengoi/fishhook waterflea Chromolaena odorata/bitter bush Cinara cupressi/cypress aphid Cinchona pubescens/red cinchona Clarias batrachus/freshwater catfish Clidemia hirta/soap bush Coptotermes formosanus/formosa termite Corbula amurensis/Asian clam Cryphonectria parasitica/chestnut blight Cyprinus carpio/carp
Dreissena polymorpha/zebra mussel Eichhornia crassipes/water hyacinth Eleutherodactylus coqui/common coqui Eriocheir sinensis/Chinese mitten crab Euglandina rosea/rosy wolf snail Euphorbia esula/leafy spurge Fallopia japonica/japanese knotweed Felis cattus/domestic cat Gambusia affinis/mosquito fish Hedychium gardnerianum/kahili ginger
Herpestes javanicus/small Indian mongoose Hiptage benghalensis/hiptage Imperata cylindrica/cogon grass Lantana camara/lantana Lates niloticus/nile perch Leucaena leucocephala/wild tamarind Ligustrum robustum/Sri Lankan privet Linepithema humile/Argentine ant Lymantria dispar/Asian gypsy moth Lythrum salicaria/purple loosestrife
Macaca fascicularis/long-tailed macaque Melaleuca quinquenervia/paper bark tree Miconia calvescens/velvet tree Micropterus salmoides/bass Mikania micrantha/mile-a-minute weed Mimosa pigra/catclaw mimosa Mnemiopsis leidyi/comb jelly Mus musculus/house mouse Morella faya/fire tree Mustela erminea/stoat
Myocastor coypus/nutria Mytilus galloprovincialis/blue mussel Ophiostoma ulmi sensu lato/Dutch elm disease Opuntia stricta/common pest pear Oryctolagus cuniculus/rabbit Pheidole megacephala/big-headed ant Phytophthora cinnamomi/cinnamon fungus Pinus pinaster/cluster pine Platydemus manokwari/flatworm Plasmodium relictum/avian malaria
Pomacea canaliculata/apple snail Prosopis glandulosa/honey mesquite Psidium cattleianum/strawberry guava Pueraria montana var. lobata/kudzu vine Pycnonotus cafer/red vented bulbul Rana catesbeiana/bullfrog Rattus rattus/black rat Salvinia molesta Rubus ellipticus/Asian wild rasberry Salmo trutta/brown trout
Schinus terebinthifolius/Brazilian pepper tree Sciurus carolinensis/grey squirrel Solenopsis invicta/red imported fire ant Spartina anglica/common cord grass Spathodea campanulata/African tulip tree Sphagneticola trilobata/wedelia Sturnus vulgaris/common starling Sus scrofa/pig Tamarix ramosissima/salt cedar Trachemys scripta elegans/red-eared slider
Trichosurus vulpecula/brushtail possum Trogoderma granarium/khapra beetle Oncorhynchus mykiss/rainbow trout Ulex europaeus/gorse Undaria pinnatifida/Asian kelp Vespula vulgaris/common wasp Vulpes vulpes/red fox Wasmannia auropunctata/little fire ant Oreochromis mossambicus/common tilapia Achatina fulica/giant African snail

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