april 16, 2016 robert emanuel clean water services · 2017. 8. 8. · april 16, 2016 robert emanuel...
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April 16, 2016
Robert Emanuel
Clean Water Services
IDENTIFYING INVASIVE SPECIES
AGENDA
• What’s the big deal: Impact of invasives
• Intro to management and your role
• Focus species
• Hands-on: SPEED DATING!
• How to report
• POE requests
IMPACT OF INVASIVE SPECIES ON AGRICULTURE, FORESTS & NATURAL AREAS
THE THREAT TO NATURAL AREAS
Invasive species cost Oregonians $125 million/year.
Invasive species cost Americans about $100 billion/year.
Invasive species cost Portland-area residents $31 million/year.
Source: Cusack, C., M. Harte, and S. Chan 2009. The Economics of Invasive Species. Oregon Sea Grant: Corvallis, OR
Are
a In
fest
ed
Time
Escape
IntroductionInvasion
Co
st
Key Stages in Plant Invasions
KEYS TO IDENTIFYING THE INVADERS
• Flowers
• Leaves and stems
• Habit (vine, herb, grass, rosette, etc.)
• Key characteristics (odor, reflectivity, color)
• Developing a “search image”
PRIMARY TARGETS:REPORT THESE ANYWHERE
Steph
an K
uzn
etsov
Glenn Miller, ODA
Garlic Mustard: Alliaria petiolata
Glenn Miller, ODA
Garlic Mustard: Alliaria petiolata
Giant Hogweed Heracleum mantegazzianum
Giant Hogweed Heracleum mantegazzianum
HogweedCow Parsnip
HogweedCow Parsnip
Knotweed Fallopia species
Japanese Knotweed Fallopia japonica
Purple Loosestrife Lythrum salicaria
Purple Loosestrife Lythrum salicaria
Ore
go
n S
tate
Un
ive
rsity
Spurge Laurel: Daphne laureola
Ca
rla C
ole
, NP
S &
Ta
nia
Sie
me
ns, O
reg
on
Se
a G
ran
t
Spurge Laurel: Daphne laureola
Goatsrue: Galega officinalis
Goats
rue
Look-A
likes
SECONDARY TARGETS: REPORT IF FOUND ALONG STREAMS
OR IN PUBLIC PARKS
Orange Hawkweed:
Pilosella aurantiaca
Lesser Celandine Ranunculus ficaria
Yellow Flag Iris Iris pseudacorus
Ph
oto
: Jud
y Scott, O
SU
Italian Lords and Ladies Arum italicum
Yellow Archangel Lamiastrum galeobdolon
Ph
oto
s: W
A S
tate
We
ed
Co
ntro
l Bo
ard
NOW FOR SOME INVASIVE SPECIESSPEED DATING
Report Report in Park or Natural Area
Garlic Mustard Lesser Celandine
Knotweed Yellow Archangel
Giant Hogweed Yellow Flag Iris
Purple Loosestrife Italian Arum
Goatsrue Orange Hawkweed
Spurge Laurel
oregoninvasiveshotline.org
REPORTING ALTERNATIVE
We really prefer website reports, but you can always call or mail info to:
Jennifer Nelson Sneed
Tualatin Soil and Water Conservation District1080 Southwest Baseline StreetHillsboro, OR 97123tualatinswcd@gmail.com
503-648-3174 x121
WEED CONTROL QUESTIONS?
OSU Extension ServiceWashington County
155 N. First Ave, Suite 200Hillsboro, Oregon 97124(503) 821-1150
extension.oregonstate.edu/washington/
DON’T BE A VECTOR!
• Clean your clothes
• Clean your pets
• Clean your equipment & vehicle
• Walk around the infestation
• Bag/trash, burn, no compost
• If collecting voucher in flower or fruit, seal it
J.K. Linsey
QUESTIONS?
SPECIAL THANKS TO OUR HOST
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