Archive for the ‘News’ Category

Garlic Mustard Alert!

Tuesday, June 15th, 2010

garlic_mustard1.JPGGarlic mustard has been known from the Columbia Gorge since the 1950s, but only recently have we seen this aggressive forest invader popping up in new locations all over Oregon.  In 2008 it was found in Jackson County, and this year (2010) about 5,700 gross acres  along about 20 miles of the Umatilla River has been discovered. So far it is not known from Lane county, but it was found in Benton county and seems to be spreading down the valley.  It may already be here but we haven’t found it yet.  Please, as you hike, bike, or work outdoors, keep a close eye out for garlic mustard.   If you see this plant, please report to www.oregoninvasiveshotline.org or call 1-866-INVADER.

Description: Garlic mustard is a cool season biennial herb with stalked, triangular to heart-shaped, coarsely toothed leaves that give off an odor of garlic when crushed. First-year plants appear as a rosette of green leaves close to the ground. Rosettes remain green through the winter and develop into mature flowering plants the following spring. Flowering plants of garlic mustard reach from 2 to 3-½ feet in height and produce buttonlike clusters of small white flowers, each with four petals in the shape of a cross.  The bloom period is May and June, seed sets in late June.  Please help us find garlic mustard before it goes to seed.

Where found: Forest understory, forest edges, shaded roadsides, urban areas, riparian areas, flood plains, hiking trails and agricultural land.

Impacts: This species suppresses trees by releasing chemicals harmful to a soil fungus the trees depend on for growth and survival. An abundance can alter the suitability of habitats for native wildlife and may alter forest succession.

Control: Because the seeds can remain viable in the soil for five years or more, effective management requires a long term commitment. The goal is to prevent seed production until the stored seed is exhausted. Hand removal of plants is possible for light infestations and when desirable native species co-occur. Care must be taken to remove the plant with its entire root system because new plants can sprout from root fragments. Herbicides are also effective.  Contact Oregon Department of Agriculture Noxious Weed Program (http://www.oregon.gov/ODA/PLANT/WEEDS/)  for recommendations.

Look-alike: Native saxifrage species (Tellima grandiflora and Tolmiea menziesii) can be distinguished from garlic mustard by long hairs on the leaf stems and by their greenish to pink flowers. The non-native money plant (Lunaria annua) also looks similar vegetatively, but usually has pink petals.

More photos: http://www.forestryimages.org/browse/subthumb.cfm?sub=3005&start=1

Links to more information: Oregon Department of AgricultureEast Multnomah SWCD,  Western Invasives Network

Credits: This weed alert was compiled by the WEEDIN (Willamette Education and Early Detection of Invasives Network) program using information and photos from the Field Guide to Weeds of the Willamette Valley,  and the Oregon Department of Agriculture.

Your help needed to collect data about an invasive grass! (Ventenata dubia)

Tuesday, June 24th, 2008

Have you seen wiregrass?

Pamela Scheinost (a Conservation Agronomist at the USDA-NRCS Plant Materials Center) is evaluating Ventenata dubia (wiregrass, hairgrass) invasiveness and sent out this questionnaire to land managers: ventenata-field-data-questionnaire.doc)

Ventenata has been flagged as an ALERT species in the Pacific Northwest by The Nature Conservancy Global Invasive Species Team (see their alert at: http://tncweeds.ucdavis.edu/alert/alrtvent.html). 

This may be an important species to flag for early detection and control in Oregon. If you would like to help get a handle on the potential threat of Ventenata in Oregon, please fill out and return the questionnaire (ventenata-field-data-questionnaire.doc)  to: pamela.scheinost@wa.usda.gov.

Sincerely,

Tania Siemens
EDRR Project Coordinator
The Nature Conservancy in Oregon

Check out the Updated Invasives List from the Emerald Chapter NPSO!

Monday, May 5th, 2008

The Emerald Chapter Native Plant Society of Oregon recently revised and released their 2002 list of invasive plants in southern Willamette Valley. You can view the list at http://www.emeraldnpso.org (Click on Invasive Plants). 

Many of the species on the list are new invaders and would require rapid response if detected, so please look out for and report any new infestations of these plants. You can view current distribution maps on www.weedmapper.org or the Oregon Plant Atlas  http://oregonflora.org/atlas.php  to find out their known distribution and if they should be reported in your area.

Ecologist and Botanist Bruce Newhouse (Salix Associates) headed up the effort, which involved careful review from many invasive plant experts in the region. Here is what Bruce had to say: 

“The Emerald Chapter of the Native Plant Society of Oregon recently revised the 2002 Invasives list, and now has posted a new list on their web site:  http://www.emeraldnpso.org (click on Invasive Plants).

This update was accomplished with the input of a wide variety of botanists, nursery owners and land managers familiar with vegetation in the southern Willamette Valley.  Note that the list is ecologically-based, identifying invasive, exotic plants which pose threats to wildland areas.  (It is not a list of garden or agricultural weeds.)”

ODA Watch List released

Tuesday, April 15th, 2008

ODA Weed Watch ListThe long awaited ODA weed watch list has been released. In total we have 19 species on the watch list. We are encouraging all weed workers, private landowners, and land managers to report these species to ODA by calling the 1-866-INVADER. We also encourage you to submit a report to Weedmapper by following this URL (http://www.weedmapper.org/submit.php). We certainly want to do all that we can to better inform the noxious weed listing process. So lets help ODA out and report these weeds where you see them occurring. Here is the weed watch list in its entirety.

ODA says…

“The following plant species have been initially reviewed by the Oregon Department of Agriculture and to warrant additional assessment due to their potential to become designated as noxious weeds. No authority or recommended actions are implied in this listing.

Common Name - Scientific Name
Black henbane - Hyoscyamus niger
Cape ivy, German ivy - Delaria odorata
Common reed - Phragmites australis
European frogbit - Hydrocharis morsus-sauge
Flowering rush - Butomus umbellatus
Herb Robert - Geranium roberttianum
Mile-a-minute - Polygonum perfoliatum
Perennial sowthistle - Sonchus arvensis
Pheasant’s eye - Adonis aestivalis
Reed canary grass - Phalaris arundinacea
Shiny-leaf geranium - Geranium lucidum
South African Capeweed - Artotheca calendula
Spanish heath - Erica lusitanica
Toothed spurge - Euphorbia dentata
Viper bugloss - Echium vulgare
Vochin knapweed - Centaurea nigrescens
Whitestem distaff thistle - Carthamus leucocaulos
Wild safflower - Carthamus oxyacantha
Yellowtuft - Alyssum murale

We are also curious if there are other weeds that you feel might be acting weedy. So if there is a species that you think is missing from the watch list we’d certainly like to hear about them. All of your expertise as weed workers and land managers provides a wealth of information, and we would like to use that information to provide ODA with some feedback. So let us know what you think by posting your comments and suggestions to the watch list thread in the forum.

Silent Invasions Press Release

Monday, March 24th, 2008

Carol Howard over at OPB sent us the latest press release pertaining to the Silent Invasions documentary on Oregon Field Guide. So we are passing it along to you. Remember to mark the dates on your calendars. This is a great opportunity to either learn more about invasive species, or coincide your organizations events with OPB media onslaught. Lets not let this opportunity pass us by. Here is the release Carol sent us today.

Carol Howard wrote:

THE SILENT INVASION

OPB special kicks off an unprecedented statewide campaign to tackle the threat of invasive species.

THE SILENT INVASION: AN OREGON FIELD GUIDE special presentation

premieres APRIL 22, 2008 at 8pm

Something troubling is taking place in Oregon. Strange exotic plants and animals are showing up in places where they don’t belong. Every day, more arrive. They come by airplane, by boats, by trucks, in handbags and suitcases. They come from Asia, Europe, the Middle East and all corners of the globe.

“Ecosystems are completely changing, things that we grew up with are no longer. They’re disappearing off the landscape and being replaced by things that are coming in from other countries … and very quietly, so we don’t notice it.” — Jim Gores, Oregon Fish and Wildlife

Feral pigs, bullfrogs, starlings and nutria driving out Oregon’s native wildlife. English ivy smothering Forest Park. Purple loosestrife taking over Oak’s Bottom Wildlife Refuge. Spartina eating away at the oyster industry of Willapa Bay in Washington. THE SILENT INVASION: AN OREGON FIELD GUIDE SPECIAL takes a look at the invaders lurking across our borders and showing up around our state. It introduces the people fighting to protect Oregon and our way of life. Tune in on Earth Day, April 22 at 8pm on the stations of Oregon Public Broadcasting to learn more about this problem and what can be done to stop the invasion.

“THE SILENT INVASION is a highly unusual undertaking for OPB. We’ve done many documentaries about environmental problems but nothing like this,” said Jeff Douglas, executive vice president and station manager. “The usual sides in environmental stories don’t appear. Invasive species are an equal-opportunity threat to our environment and our economy … to the Oregon we all love. Ranchers know it. Birders know it. It’s not an issue that divides liberals from conservatives or urban versus rural. We all care about Oregon and we can all make a difference.”

The documentary illustrates how invasive species are changing our environment. One story takes viewers to the Oregon/Idaho border where yellow star thistle is wreaking havoc on the grasslands. A family ranch in Hell’s Canyon, passed down through the decades, has been so decimated by the weed the ranch may be worthless to the next generation.

And solutions to invasive species aren’t easy to come by. In one case an exotic fish was brought in to eradicate an invasive weed taking over Devils Lake near Lincoln City. The new fish destroyed the weed, then began devouring native plants as well, upsetting the food chain and spurring a dangerous bacterial growth.

And then there’s the quagga mussel. Brought to the Great Lakes in the ballast water of a ship from the Caspian Sea in the ’80s, they multiplied out of control, causing an economic and environmental catastrophe. Then, in 2007, quaggas hitched a ride on an unwashed boat to Lake Mead some 2,000 miles away. Now fish hatcheries have been shut down and Hoover Dam itself is threatened as quaggas clog water intakes and turbines. Could Oregon be invaded next? Every boat entering Oregon waters is a potential risk to everything from Oregon’s dams to wild salmon.

Narrated by SOLV’s Jack McGowan, THE SILENT INVASION documents the economic consequences to the social and environmental costs of invasive species. But it also highlights success stories and points viewers toward action they can take.

STOP THE INVASION — An unprecedented statewide campaign to protect Oregon from invasive species

“The broadcast of THE SILENT INVASION on April 22 is not the end of the OPB program — it’s the beginning of a campaign to Stop The Invasion,” said Douglas. “It’s a campaign that involves OPB’s partners — SOLV, The Nature Conservancy, Oregon Invasive Species Council, the City of Portland, Portland State University, Oregon Sea Grant, Oregon State University and — most of all – our citizens.”

“This campaign truly represents the highest level of collaboration amongst government, nonprofit and private entities in Oregon,” said Governor Kulongoski. “This is an excellent example of what can happen when people work together to leverage resources to make a difference to Oregon’s native fish and wildlife resources, economy, and quality of life.”

Volunteers take action

Following the broadcast of the silent Invasion, SOLV and OPB will kick off a massive statewide volunteer effort to remove invasive species and restore Oregon’s native environment. Learn how you can join any of the hundreds of invasive species weed eradications or native landscape restorations by searching the calendar of events at www.opb.org/silentinvasion.

A Website to help protect Oregon from invasive species

The Silent Invasion Web site is the place to go to find out how you can take action in your community or right in your own backyard. The Invasive Species Hot Line is a tool designed to help Oregonians report invasive species outbreaks. The “GardenSmart Oregon” guide, developed in association with The Nature Conservancy, Portland BES, Oregon Sea Grant and the Oregon Association of Nurseries, highlights which plants are most likely to cause problems in yards along with several suggested alternative plants that are unlikely to escape into the natural environment. Visit the OPB Web site to find out how to download or order a hard copy of the GardenSmart guide.

Join In The Fight

“We want the end of the series to mark the beginning of the ongoing effort to detect, slow down or even prevent future invasions,” said OPB’s Douglas.

Log on to opb.org/silentinvasion to find out how to become involved. And be sure to watch THE SILENT INVASION: AN OREGON FIELD GUIDE Special on Earth Day, Thursday, April 22 at 8pm. The program rebroadcasts on Thursday, April 24 at 2am and 8pm and Sunday, April 27 at 2am and 6pm.

Video Archive

Want to know more about some of the plants, animals and insects threatening the state’s most pristine environments? Throughout the year, FIELD GUIDE is airing episodes on invasive species, documenting the destruction they’re causing our environment. A video archive of these episodes is available to stream anytime at opb.org/silentinvasion.

About OREGON FIELD GUIDE

In its 19th season, OREGON FIELD GUIDE remains a valuable source of information about outdoor recreation, ecological issues, natural resources and travel destinations. OREGON FIELD GUIDE airs Thursday evenings at 8:30pm on the television stations of Oregon Public Broadcasting and repeats on Sunday evenings at 6:30pm. In the Mountain Time zone of Eastern Oregon, the program airs at 9:30pm Thursdays and at 7:30pm Sundays.

About OPB

OPB is the state’s most far-reaching and accessible media resource, providing free access to programming for children and adults designed to give voice to community, connect Oregon and its neighbors and illuminate a wider world. Every week, over 1.5 million people tune in to or log on to OPB’s Television, Radio and Internet delivered services. As the hub of operations for the state’s Emergency Broadcast and Amber Alert services, OPB serves as the backbone for the distribution of critical information to broadcasters and homes throughout Oregon. OPB is one of the largest producers and presenters of national television programming through PBS, and is also a member station of NPR, Public Radio International (PRI), and American Public Media (APM). The OPB Web site is opb.org.

“Weed Watchers” help slow the spread of Invasive Species

Thursday, March 13th, 2008

 Tania points out differences between invasive and native grasses. ©Mandy Tu/TNC

Habitats across Oregon got a boost last year thanks to The Nature Conservancy’s first-ever “Weed Watcher” volunteer team. Armed with plant identification skills, keen eyes and patience, over 100 volunteers scanned landscapes regularly to prevent the establishment of new invasive plants by spotting and reporting them early. After volunteers reported findings – like yellow starthistle at Lower Table Rock Preserve and garlic mustard at Camassia Natural Area – Conservancy ecologists strategized how to best respond. Lessons learned from this new approach, part of the Conservancy’s Early Detection and Rapid Response (EDRR) program, are also being shared with agency partners and others working to eradicate invasives. “Detecting and controlling invasives early is like preventive medicine for nature,” said Tania Siemens, EDRR coordinator. “‘Weed Watchers’ play an integral role in addressing invasive problems before they’re insurmountable.” For more information about how you or your team can become “weed watchers” or begin your own EDRR program, please contact Tania Siemens . This year’s first Weed Watcher training is May 3rd in Portland, so mark your calendars and contact Tania for more information.

More Weed Watcher information and downloadable materials can be found on the WIN website.

Special thanks to the Nature Conservancy of Oregon for providing this content.

Are you ready for the field season?

Tuesday, March 11th, 2008

The warm weather is rapidly approaching, and I am sure all of you are scrambling to coordinate field activities.  With the unusually warm  weather, some of you may already be dealing with emergent weeds.

Before the season gets too far along, it might be a good idea to take advantage of this brief calm before the storm, and develop a control schedule.  A control schedule can be used as a quick tool to help direct your field efforts, and allow you to anticipate activities down the road.

A sample weed control schedule was recently sent my way, and I was amazed at its simplicity and informativeness.  So since we here at the WIN love to share the wealth (or is it that misery loves company), we are providing here to you.  Use this as a guide to develop your own control efforts.

Special thanks to the King County Noxious Weed Control Program for developing this and making it available for all of us.

Sample Control Schedule

The WIN makes the Statesman Journal

Monday, March 10th, 2008

In my perusing of the Statesman Journal website I came across a list of sites related to invasive species work. To my surprise, the WIN site was listed as a resource for invasive species. Although, we have been working hard here at WIN, we have held off on our media blitz, until the site was where we wanted it to be. So this early publicity is welcomed surprise. So thanks for the boost Statesman Journal, and check out the WIN reference here.

Also, if you have haven’t had a chance to check out what SJ is doing be sure to check our their invasives site. They have finally given a voice to the problem of invasive species in Oregon. We here at the WIN cannot express out appreciation enough for their dedication to this issue.

oregoninvasiveshotline.com

Friday, March 7th, 2008

We received news yesterday from Lisa deBruyckere of the OISC that Oregon Public Broadcasting is developing a new web based on the Oregon Invasives hotline. The new web address will provide an additional avenue for reporting invaders in Oregon.

http://oregoninvasiveshotline.org/

The launch of the site is scheduled to coincide with the airing of a special Oregon Field guide documentary on invasive species entitled The Silent Invasion. The documentary will feature many exotic plants and animals that pose a threat to Oregon.

The Silent Invasion will also coincide with coordinated invasives species control efforts throughout the state. If you are interested in getting involved be sure to check out SOLV’s volunteer website.

Preview screenings of the Silent Invasion will take place at the following time and locations.

Corvallis
Wednesday, April 9
CH2MHill Alumni Center, OSU
Doors open 5pm, screening at 5:30pm

Bend
Thursday, April 10
Tower Theater
Doors open 6:30pm, screening at 7pm

Portland
Monday, April 14
Oregon Zoo
Doors open 6:30pm, screening at 7pm

Salem
Wednesday, April 16
Chemeketa Community College Auditorium
Doors open at 6pm, screening at 6:30pm

Newport
Thursday, April 17
Hatfield Marine Science Center
Doors open 6pm, screening 7pm

The screening is free of charge, but space is limited so make plans to get there early.

New Species Added to ODA Noxious Weed List

Friday, March 7th, 2008

Several new species were added to the ODA Noxious Weed list at the Oregon State Weed Board meeting on Thursday, March 6th 2008.  “A” listed weeds added were

  • Goat’s rue  (Tephrosia virginiana)
  • Oblong spurge (Euphorbia oblongata)
  • Taurian thistle (Onopordum tauricum)
  • White Bryony (Bryonia alba)

One “B” listed weed was added:

  • Spurge laurel (Daphne laureola)

and one species was added to the ODA watch list:

  • Flowering Rush (Butomus umbellatus)