Essex Field Club on Facebook

Visit Our Centre

EFC Centre at Wat Tyler Country ParkOur centre is available for visits on a pre-booked basis on Wednesdays between 10am - 4pm. The Club’s activities and displays are also usually open to the public on the first Saturday of the month 11am - 4pm.

About us

Video about the Club Essex Field Club video

registered charity
no 1113963
HLF Logo A-Z Page Index

Invasive species

Japanese Knotweed Copyright: Peter Harvey
record an invasive species...
African Clawed-toad
Alligator weed
Alpine Newt
American Mink
American oyster drill
American Skunk-cabbage
Amur River clam
Ash Dieback
Asian Date mussel
Asian Hornet
Asian semele
Australian Flatworm
Bar-headed Goose
Bighead goby
Black Swan
Brown bullhead
brush-clawed shore crab
Bull Frog
Canada Goose
Canadian Goldenrod
Canadian Waterweed
Carolina mosquito fern
Carolina Watershield
Carpet Sea Squirt
Caspian mud shrimp
Chilean Needle Grass
Chinese Mitten Crab
Chinese Water Deer
Common cord-grass
Common milkweed
Crimson fountaingrass
Curly Waterweed
Dwarf horsetail
Eastern mosquitofish
Edible Dormouse
Egyptian Goose
Emperor Goose
Eurasian Eagle Owl
Evergreen Oak
False Acacia
Floating Pennywort
Freshwater amphipod
Fringed Waterlily
Giant Hogweed
Giant reed
Giant Rhubarbs
Giant Salvinia
gibel carp
Graceful cattail
Grass carp
Harlequin Ladybird
Himalayan Balsam
Hottentot Fig
Hybrid primrose
Indian House Crow
Japanese Knotweed
Japanese knotweed hybrid
Japanese Rose
Killer Shrimp
Kontikia Flatworms
Lawn pennywort
Least bulrush
Leathery Sea Squirt
marbled newt
Marsh Frog
Midwife Toad
Monk Parakeet
Monkey goby
Muntjac Deer
New Zealand Flatworm
New Zealand Pigmyweed
North American signal crayfish Northern River Crangonyctid
Nuttall's Waterweed
Orange Sheath Tunicate
Oxygen weed
Parrot's Feather
Purple nut sedge
quagga mussel
Red ludwigia/ creeping ludwigia
Red-eared Terrapin
Rose-ringed Parakeet
Ruddy Duck
Rusty crayfish
Sacred Ibis
Siberian Chipmunk
Signal Crayfish
Sika Deer
Slipper Limpet
Smallmouth bass
Sosnowskyi hogweed
Spanish Bluebell
Spotted-wing drosophila
Titan acorn barnacle
Tubenose goby
Turkey Oak
Water Fern
Water Lettuce
Water milfoil
Water Primrose
Waterweed species
Western Green Lizard
White sucker fish
Whitetop weed
Wood Duck
Zebra Mussel
Information about invasive species
Invasive species may threaten habitats and species with biodiversity and nature conservation value. Where invasive species are present, action may or may not be appropriate to control their spread or to eliminate them from sites and habitats.

Invasive Species Action Plans are used to help coordinate the response to key invasive non-native species across England, Scotland and Wales. The plans provide a short and strategic overview identifying the key aims, objectives and actions. They can be seen on the Defra website link. More information on invasive species, the problem they pose in Essex, and what you can do to help is given on the Essex Biodiversity Project link website.

Action on invasive species
The appropriate response to the presence of an invasive species will vary depending on the species and the degree to which it is or may in the future cause damage to the ecology at the location.

Identification of invasive species
Identification of invasive non-native species is an essential part of invasive species management and guidance can be found of the recording form for Floating Pennywort, Canadian and Nuttall's Waterweed and on the Defra website. Information on Ash Dieback disease can be found at the Forestry Research link link, where it can also be reported using the form provided. Please also report cases in Essex using our form.

Invasive species records
Most existing records of invasive species are made during general recording for a taxonomic group, although we want to encourage targeted recording of these species in the future.

Where you have records of invasive species, please submit them to us here by selecting the invasive species from the list on the left and completing and submitting the form or by submitting them by email to . You will need to register and be logged-on to submit records and upload images to support your record.