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Water and Weeds Streamkeepers Noxious Weed Training 2006 Cathy Lucero-Clallam County Noxious Weed Control Program.

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Presentation on theme: "Water and Weeds Streamkeepers Noxious Weed Training 2006 Cathy Lucero-Clallam County Noxious Weed Control Program."— Presentation transcript:

1 Water and Weeds Streamkeepers Noxious Weed Training 2006 Cathy Lucero-Clallam County Noxious Weed Control Program

2 Who are we? “The Weed Police” Federal Noxious Weed Law Aimed at preventing invasive exotic introductions Meet or match local programs State Noxious Weed Law Kill ‘em when they’re young! Prioritized weed list-revised annually County Weed Boards Local control Broad enforcement powers

3 What’s wrong with weeds? WEED Compete for light, = Plant out of Place water, nutrients, Noxious Weeds are Masters of Competition Non-native Aggressive Difficult to Control Once Established Cause Economic or Environmental Damage Problem that won’t go away space

4 What’s wrong with noxious weeds? Numerous Impacts Destroy wildlife habitat Pose hazard to humans and animals Lower land values Reduce crop value or production Cause flooding Reduce recreational uses Diminish aesthetics They’re MONSTERS!

5 What’s the big deal? US Forest Service calls noxious weeds second leading cause of species endangerment The BLM estimates 4,600 acres of wildlife habitat taken over every day by non-native plants Creates the perfect environment for additional non- native species Plain Economics Controlling Eurasian Watermilfoil cost Washington state about $1million annually. Knapweed infestations in Montana rangeland and wildland cost about $42 million annually. Leafy spurge in Montana, North Dakota, South Dakota & Wyoming costs $129.5 million annually and represents a loss of 1,433 jobs

6 Goal of Streamkeeper Training: To train volunteers to help detect and monitor infestations, thus preventing or slowing the establishment of noxious weeds in sensitive areas such as riparian and aquatic environments.

7 Plants and Streams Shade water Add nutrients Filter pollutants Influence structure Deflect energy Bank stabilization Habitat diversity






13 Water Weeds Typically submergent vegetation, except during reproduction Live in shallow streams, slow moving water, ponds and lakes, Some tolerate salinity Most aquarium escapees Impacts Rapid growth, monocultures Alter water quality Degrade habitat Clog waterways and pipe intakes Siltation and flooding Affect water storage capacity Recreation-boating, fishing, swimming $$$$$$$

14 Brazilian Elodea (Egeria densa)

15 Eurasian Watermilfoil (Myriophyllum spicatum) Native-Northern milfoil (Myriophyllum sibericum) on Rt.

16 Parrot Feather (Myriophyllum aquaticum)

17 Watercress (Rorippa nasturtium-aquaticum)

18 Fragrant Waterlily (Nymphaea odorata)

19 Land Weeds Land weeds 1/2 ornamental introductions, others contaminants Aggressive and competitive Most thrive in moist environment Some are poisonous Most unpalatable Impacts Rapid growth, monocultures Prevent establishment of beneficial plants Degrade or threaten habitat Clog waterways and pipe intakes Siltation and flooding Decrease pasture or meadow productivity $$$$$$$

20 Butterfly Bush (Buddleia davidii)

21 Giant Hogweed Large, umbrella-shaped flower head 10-15 ft. tall. Deeply lobed leaves, smooth Purple splotched or purple stem TOXIC! Causes severe burns and blistering (Heracleum mantegazzianum)

22 Look-a-Likes Colt’s foot Cow parsnip

23 Herb Robert aka “Stinky Bob” (Geranium robertianum) 5 petaled pink flower Hairy stem Leaves smell


25 Peabody Creek

26 English ivy (Hedera helix, several varieties)

27 Knotweeds (Polygonum.spp) Bamboo-like stems Spikes of white flowers

28 4/9

29 4/29

30 5/21

31 8/5

32 9/10

33 10/10

34 Knotweed Root mass 12 days later



37 Knapweeds (Centaurea spp.) Purple, white flowers Related to Bachelor’s button

38 Spotted Knapweed (Centaurea biebersteinii)

39 Orange hawkweed (Hieracium aurantiacum) Bright orange flowers Milky sap Stolons

40 Purple Loosestrife (Lythrum salicaria) 5-7 petals Opposite, entire leaves Square stem

41 Poison hemlock (Conium maculatum) Smooth, purple splotched stem VERY POISONOUSVERY POISONOUS

42 Hemlock Look-a-Likes Western Water hemlock Wild carrot Water parsley Bur chervil

43 Reed Canarygrass (Phalaris arundinacea) Matriotti Creek AFTERBEFORE Large cellophane ligule

44 Scotch Broom (Cytisus scoparius)

45 Smooth Cordgrass (Spartina alternaflora) No native grass on mudflats Fringe of hairs in axil

46 Smooth Cordgrass (Spartina alternaflora) Hydrology impacts

47 Tansy Ragwort (Senecio jacobaea) (Senecio jacobaea) 13 yellow petals Ruffly leaf TOXIC

48 Tansy Look-a-Likes St. Johnswort Groundsels Common tansy Dusty Miller

49 Yellow Flag Iris (Iris pseudocornus)

50 Data Sheets

51 Impact Summary Eliminates estuaries, destroys shell-fish, bird, and invertebrate habitat, increases flooding, encourages other exotic species

52 Impact Summary Crowds out native vegetation, reduces wildlife habitat, reduces natural inputs to stream structure

53 Impact Summary Destroys fish and invertebrate habitat, impacts water quality, impedes restoration efforts

54 Impact Summary Reduces land values and recreational use

55 Impact Summary Reduces forage, threat to human or animal health

56 Impact Summary Wipes out valuable forest understory habitat, reduces biodiversity

57 Ultimate Goal: Protect Natural Resources

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