2019-09-06: Our discovery of this thistle species, now thought to be Carduus cinereus, was not as early an early a detection as one would like.  It also took us all a while to recognize it as something different from Italian thistle (Carduus pycnocephalus) after that.  The plant has limited windows of visibility and exists in some of the most rugged and remote country we have in Oregon. It is super rough country to access. This site is almost a 20 mile ride into back country, or a 3 hour drive plus an hour jet boat ride plus a 5-mile hike. It is much easier to have horses and mules carry you and your gear in to treat these sites. Add in complex NEPA considerations over time, low weed control budgets locally, and there is much left to do.  

What has also happened is all the work that it took to figure out the conundrum of its identification. Thanks so much to John Gaskin for keeping that effort alive!  

Our delimitation surveys have given us a pretty fair idea of where the plant is (on the Oregon side).  We did release Trichosirocalus horridus, a root crown weevil, on it -- though they don’t appear to have established and may not be appropriate for the plant.  Some treatments in Hells Canyon of outlying and vector sites have also occurred.  

progress report shared by

Mark Porter and Shawna Batista

Turkish thistle infestation in OregonTurkish Thistle (Carduus cinereus) infestation in Hell's Canyon, Oregon

The Western Society of Weed Science's Rita Beard Endowment Foundation Scholarship supports students and early career invasive species managers with educational opportunities by providing registration and travel funds to a professional meeting including the 2020 Western Society of Weed Science, 2020 Western Aquatic Plant Management Society or the 2020 Society of Range Science meeting. Go to: for information and details on qualifications and how to apply. The deadline for applications is October 15, 2019.  Applicants will be informed by November 1, 2019.  If you have questions, contact either Phil Banks, WSWSRBF President ( or Todd Neel, WSWSRBF Secretary (

Check out for the job description of an Interdisciplinary (GS-14) Cooperative Ecosystem Studies Units (CESU) Coordinator for the Midwest Region of the NPS. This position is open to the general public and closes on August 12th, 2019.


NAISMA is hiring!

The North American Invasive Species Management Association (NAISMA), a 501(c)3 nonprofit organization, announces an employment opportunity for a 3⁄4 time Program Manager position to administer the PlayCleanGo® Program.

PlayCleanGo is an international education and outreach campaign for outdoor recreationists developed to promote awareness, understanding, and cooperation by providing a clear call to action to be informed, attentive, and accountable for stopping the spread of invasive species. The PlayCleanGo program needs a Program Manager with creative ideas for program growth and who thrives in a fast-paced and creative team.

The successful candidate will help grow the program’s reach in the U.S.; facilitate committees and partner involvement; oversee and manage new outreach, partnership, and program promotion initiatives; generate reports and communications for internal and external publications and grants as needed; have excellent communication skills; and experience managing projects with multiple partners.

While NAISMA’s office is in Milwaukee,Wisconsin, this position can be executed via telecommuting from anywhere if the successful candidate has demonstrated capacity to do so. This is a 1-year, non-salaried contractor position, renewable depending on the successful candidate’s performance and the organization’s fundraising efforts.

Click here for the complete Program Manager job announcement. Interested candidates, please email a single pdf file with a resume or CV and cover letter with 2-3 references to: by COB Tuesday, July 30, 2019.

A new species of thistle has been found in the Hells Canyon Wilderness of northeastern Oregon and western Idaho. The Oregon population is found in Wallowa County, which borders Columbia, Garfield, and Asotin Counties in Washington.

Turkish or Spanish thistle (Carduus cinereus) has never been found in North America so this will be a new one to watch out for. See photos below. It was originally identified as Italian thistle (C. pycnocephalus). The plants were generally quite short at the Oregon sites but could grow up to 2 feet. There doesn’t seem to be a lot known about this species but it is worth keeping on your radar. 

A paper about this species should be coming out soon (Gaskin et al. Carduus cinereus (Asteraceae) – New to North America, in press). 

inflorescence with stem and rootInfested hillsidethistle leaf on person's leg, showing size and spiny leaf edges.Erect plant stem and leaves showing spines.Triple purple and white inflorescences and scale-like bracts.


Thursday, July 18, 2019 at 1:30pm – 2:30pm (Eastern time)


USDA FOREST SERVICE HEADQUARTERS - Yates Building, 201 14TH Street, SW (Washington DC) in the Civilian Conservation Corps room
(basement/promenade level)


Endogenous chemical isolates research and development for invasive species control and management


Dr. Shiyou Li, Stephen F. Austin University and DR. Rima Lucardi, USFS Southern Research Station


Endogenous biocides are a novel innovation in the treatment and management of non-native invasive plant species. This research between the Forest Service (Research & Development, Southern Research Station), Stephen F. Austin State University (Nacogdoches, TX), and Mississippi State University (Starkville, MS) seeks to utilize isolated chemicals produced and already present natively within the target plant species. When applied to infestations in specific concentrations or following chemical refining processes, these biocides can be auto-toxic and lethal to the undesirable species. This approach has already been demonstrated with local-scale, aquatic applications in Giant Salvinia (Salvinia molesta), with no non-target impacts observed. The collaborators on this research seek to identify and develop auto-toxic biocidal compounds for two highly invasive, non-native species in the southern United States: 1) Chinese tallow tree (Triadica sebifera) and 2) cogongrass (Imperata cylindrica & hybrids). Preliminary greenhouse trials of promising chemical isolates (endogenous biocides) applied to Chinese tallow tree seedlings have shown lethality within days. We seek to continue research and development of chemical compounds for the treatment of these and other highly invasive non-native species. We first plan to obtain and compare invasive and native lineages of both plant species in terms of genetic and chemical profiles. Second, we will identify and test isolated compounds in replicated greenhouse trials. Third, we will seek approval for set-up and field-testing of lethal compounds at SRS experimental forests, across states and ecophysiographic regions. Lastly, and perhaps the most challenging and ambitious step, is developing a method for chemical synthesis and scaling-up the process for the treatment and extirpation of large infestations of these invasive plant species, without non- target impacts, in forested ecosystems on both public and private lands.

Dial: 1-888-844-9904
Access Code: 3847359#

On June 7, 2019, USDA’s Animal and Plant Health Inspection Service (APHIS) announced that it was investigating a detection of genetically engineered (GE) wheat in an unplanted agricultural field in Washington State.  The GE wheat plants in question were resistant to the herbicide glyphosate. After a thorough fact finding effort, APHIS has determined through testing that the GE wheat plants in question were developed by Monsanto (now owned by Bayer CropScience (BCS)) and referred to as MON 71300 and MON 71800.   

There is no evidence that any GE wheat has entered commerce or is in the food supply.

The Food and Drug Administration (FDA) completed a voluntary food and feed safety evaluation on MON 71800 several years ago, concluding it was as safe as non-GE wheat currently on the market. MON 71300 contains the same gene for glyphosate resistance as MON 71800, previously evaluated by FDA. With respect to MON 71300, FDA states it “would have no safety concerns in the unlikely event that low levels of MON 71300 wheat or MON 71800 wheat were present in the food supply.”  Additionally, APHIS is announcing that a test kit will be available for our trading partners to detect MON 71300.  Previous test kits detected MON 71800 found in Oregon (2013) and MON 71700 found in Washington (2016). 

There is no GE wheat for sale or in commercial production in the United States at this time.

APHIS is collaborating with our state, industry and trading partners.  Announcing the availability of this test is part of our commitment to provide the public and all of our partners with timely and transparent information about our findings.

After previous detections of GE wheat, APHIS strengthened its oversight of regulated GE wheat field trials.  APHIS now requires developers to apply for a permit for field trials involving GE wheat beginning with GE wheat planted on or after January 1, 2016. Bringing GE wheat under permit enables APHIS to create and enforce permit conditions that ensure confinement and minimize the risk that the regulated GE wheat will persist in the environment.

It's here!  The Pet Industry Joint Advisory Council (PIJAC), along with co-sponsors the U.S. Fish and Wildlife Service (USFWS) and the National Oceanic and Atmospheric Administration (NOAA), announced the re-launch of the Habitattitude educational campaign during the Reduce Risks from Invasive Species Coalition’s (RRISC) agency fair on Capitol Hill in Washington, D.C. Habitattitude is a non-regulatory collaboration between industry groups and government agencies that is designed to increase awareness of the risks posed by non-native species in the environment and to positively impact consumer attitudes and practices.  

Press Release -

Habitattitude -

The Southwest Exotic Plant Management Team (SW EPMT) is based in Tucson, AZ and is one of the largest of the program. The team conducts invasive plant and native restoration projects across 46 parks throughout AZ, NM, OK, TX, and UT.  Great opportunity to work with a great staff. The announcement closes 6/27 and has a 50 applicant limit. The program is looking at a late September start date.

Apply through USAJOBS at

APHIS Seeks Comments on Environmental Assessment for the Release of the Japanese knotweed psyllid to Biologically Control Japanese, Giant, and Bohemian Knotweeds 

USDA's Animal and Plant Health Inspection Service (APHIS) has assessed the potential environmental impacts associated with releasing the Japanese knotweed psyllid (Aphalara itadori) to biologically control Japanese, Giant, and Bohemian knotweeds (Fallopia japonicaFsachalinensis, and F. x bohemica) within the contiguous United States. These knotweeds are significant invasive weeds. Based on their thorough analysis, APHIS scientists have determined that the release of this psyllid would not have a significant impact on the environment.

We are making the environmental assessment available to the public for review and comment for a 30 day period that ends on June 27, 2019. APHIS will review and respond to all comments received. If the public does not raise any significant concerns, we will issue a Finding of No Significant Impact (FONSI) and begin issuing permits to release Japanese knotweed psyllid into the environment. 

Review and comment on this this notice in the Federal Register at


EPA Takes Next Step in Review Process for Herbicide Glyphosate, Reaffirms No Risk to Public Health

Today, the U.S. Environmental Protection Agency (EPA) is taking an important step in the agency’s review of glyphosate. As part of this action, EPA continues to find that there are no risks to public health when glyphosate is used in accordance with its current label and that glyphosate is not a carcinogen. The agency’s scientific findings on human health risk are consistent with the conclusions of science reviews by many other countries and other federal agencies. While the agency did not identify public health risks in the 2017 human health risk assessment, the 2017 ecological assessment did identify ecological risks. To address these risks, EPA is proposing management measures to help farmers target pesticide sprays on the intended pest, protect pollinators, and reduce the problem of weeds becoming resistant to glyphosate.

“EPA has found no risks to public health from the current registered uses of glyphosate,” said EPAAdministrator Andrew Wheeler. “Today’s proposed action includes new management measures that will help farmers use glyphosate in the most effective and efficient way possible, including pollinator protections. We look forward to input from farmers and other stakeholders to ensure that the draft management measures are workable, realistic, and effective.”

“If we are going to feed 10 billion people by 2050, we are going to need all the tools at our disposal, which includes the use the glyphosate,” U.S. Secretary of Agriculture Sonny Perdue said. “USDA applauds EPA’s proposed registration decision as it is science-based and consistent with the findings of other regulatory authorities that glyphosate does not pose a carcinogenic hazard to humans.”

Glyphosate is the most widely used herbicide in U.S. agriculture and has been studied for decades.  Glyphosate is used on more than 100 food crops, including glyphosate-resistant corn, soybean, cotton, canola and sugar beet. Non-agricultural uses include residential areas, aquatic areas, forests, rights of way, ornamentals and turf. 

Once the Federal Register notice publishes, the public will be able to submit comments on EPA’s proposed decision at in docket # EPA-HQ-OPP-2009-0361. Public comments will be due 60 days after the date of publication in Federal Register. EPA’s responses to the comments received on the draft ecological and human health risk assessments and the benefits assessment will be in the docket.

Find more information about glyphosate, including today’s proposed interim decision and supporting documents.

See the glyphosate draft risk assessments and supporting documents.


PlayCleanGo Awareness Week Interactive Events Map

Are you celebrating PlayCleanGo Awareness Week by hosting a weed-pull or plant native event, a float trip, a trail ride or another fun educational activity for the public? If you're planning an event, you deserve all the recognition for raising awareness about the spread of invasive species and PlayCleanGo and NAISMA is here to help! 

Let NAISMA promote your PlayCleanGo Awareness Week events and activities by adding it to their Interactive Event Map, June 1-8, 2019! Listing your event or activity on the official PlayCleanGo Awareness Week webpage helps:

  1. Promote participation

  2. Share event details with attendees

  3. Show that you are part of a national movement to stop the spread of invasive species while enjoying the great outdoors.

It's simple - fill out the submission form found here by 10am (Central time) on Thursday, May 30th. The rest will be in our hands!

Not feeling the "hosting bug" but still want to join the fun? Continue to check the PlayCleanGo Awareness Week Interactive Map for updated events in your area. And, don't forget to share photos while using the #PlayCleanGoWeek hashtag - your support helps in our efforts to raise awareness across North America about the spread of invasive plants and pests.

The Western Weed Coordinating Committee (WWCC) annual meeting is scheduled for the week of December 2nd with the 2nd and 6th being travel days. December 3rd and 5th the meeting will take place at the New York Hotel in Las Vegas as in the past. On December 4th there will be a scheduled field trip to the Red Rock Canyon Visitor Center to see a BLM restoration site and hear from staff involved.  The rest of the day on the 4th the meeting will be held at the visitor center, hearing from other partners not yet determined. 

For logistical purposes and calculating costs, WWCC meeting organizer Sean Gephart needs to know the number of participants. If you plan to attend, please fill out the doodle poll ASAP:

Hopefully you can attend!

Dear resident of planet Earth,

Did you see the recent UN report detailing the world’s biodiversity crisis and its implications for humans? Invasive species are listed as one of the major contributing factors. It’s high time we all get up to speed on how invasive species affect us.

Each day from June 3 to June 7, tune in to our Lunchtime Webinars on Invasive Species, organized by the University of California Cooperative Extension and the nonprofit California Invasive Plant Council. (It’s California Invasive Species Action Week so what better time to pend 40 minutes feeding your mind while eating your lunch?!)

During the first part of the week we cover a range of organisms, from killer algae and incestuous beetles to “rodents of unusual size.”  Later in the week it’s Weeds-A-Palooza with talks focusing on invasive plants. Join us!

Monday, June 3: “How they get here: Aquatic invasive species being moved around the world”

Sabrina Drill, Natural Resources Advisor, UC Cooperative Extension

Tuesday, June 4: “What’s killing California’s trees? Shot hole borers, palm weevils and the rest”

Beatriz Nobua-Behrmann, Urban Forestry and Natural Resources Advisor, UC Cooperative Extension

Wednesday, June 5: “Rodents of unusual size: Nutria in the Delta”

Valerie Cook-Fletcher, Nutria Eradication Incident Commander, Cal. Dept. of Fish & Wildlife

Thursday, June 6: “Citizen stewardship: Tackling giant reed in Contra Costa County”

Mike Anciaux and Bob Simmons, Walnut Creek Watershed Council

Friday, June 7: “Organizing to stop one of the world’s worst weeds: Marin Knotweed Task Force”

Eric Wrubel, San Francisco Bay Area Network, National Park Service

All details are available online at Hope you can join us!

Doug Johnson, Executive Director

California Invasive Plant Council

The gorgeous PNW hiking weather has officially arrived, and this summer, you can hit the trails with a purpose by learning how to identify and report invasive plant species! Sign up for one of the FREE invasive plant ID workshops at the RSVP links listed below, and the Pacific Northwest Invasive Plant Council will show you how. All trainings are also eligible for up to 2.5 WSDA, SER and SWS/PWS recertification credits.


*All trainings are eligible for up to 2.5 WSDA, SER, and SWS/PWS recertification credits


About the Program

The Pacific Northwest Invasive Plant Council (PNW IPC) is a non-profit conservation organization ( working in partnership with National Forests and Parks, Washington Dept. of Agriculture (WSDA), Department of Natural Resources (DNR), county noxious weed programs, and other local groups on a Citizen Science EDRR (Early Detection Rapid Response) program. This will be their eighth year to search for priority and newly emerging invasive plants in our National Forests, National Parks and other public lands. If you are recreating and/or working on public lands and are interested in participating in our program and/or would like to learn more about invasive plants, you are invited to attend one of their FREE upcoming trainings. 


Citizen Science EDRR Volunteer Training

A 2.5 hour training session where you will learn how to identify priority invasive species, how to record basic data and how to report findings on EDDMapSWest, a national early detection reporting system.  Participants learn plant identification through a PowerPoint presentation and live material. Participants also learn methods of manual removal and which species you should not attempt to remove. Trainings will equip volunteers with the knowledge necessary to conduct invasive plant surveys in order to support local land managers that need your help. Your efforts will directly support the maintenance of healthy ecosystems. Volunteers will receive an invasive plant identification booklet along with survey forms. We ask that volunteers who sign up conduct a minimum of 1-2 surveys over the field season.


Workshops in 2019: Capacity will be limited, so if you would like to attend one of these free trainings, please RSVP to Marisa Deluccia at to reserve your place!


Mount Vernon, WA               Friday, May 17th, 10:00 am – 12:30 pm 

Address: Padilla Bay National Estuarine Research Reserve, 10441 Bayview Edison Rd, Mt. Vernon, WA 98273

Hosted by: Joseph Shea, Skagit Co. Noxious Weed Coordinator

RSVP at:

Bellingham, WA                Thursday, May 23rd, 1:00 pm – 3:30 pm

Address: Whatcom County Public Works Building, 322 N Commercial St #210, Bellingham, WA 98225

Hosted by: Laurel Baldwin, Whatcom Co. Noxious Weed Control Board

RSVP at:

Chehalis, WA Wednesday, June 5th, Start Time: 10:00 am – 12:30 pm

Address: Community Event Building at Southwest WA Fairgrounds, 2555 N National Ave, Chehalis WA 98532

Hosted by: Bill Wamsley, Lewis Co. Noxious Weed Control Board

RSVP at:

Snohomish County, WA  Saturday, June 8th, 10:00 am – 12:30 pm  

Address: Snohomish County Road Maintenance Facility, 8915 Cathcart Way, Snohomish, WA 98296

Hosted by: Jonathane Schmitt, King Co. Noxious Weed Board

RSVP at:

North Bend, WA                   Sunday, June 9nd, 12:30 pm – 3:00 pm

Address: North Bend Ranger Station, Meeting Hall (behind station)902 SE North Bend Way, North Bend, WA 98045

Hosted by: Sasha Shaw, King Co. Noxious Weed Board, and Jonathane Schmitt, Mt. Baker-Snoqualmie Forest Service

RSVP at:

Auburn, WA                     Saturday, June 15th, 10:00 am – 12:30 pm

Address: Green River College (PNW Conference Room), 12401 SE 320th St., Auburn, WA 98092

Hosted by: Jonathane Schmitt, Mt. Baker-Snoqualmie Forest Service

RSVP at:

Seattle, WA                      Saturday, June 22nd, 10:00 am – 12:30 pm

Address: Center for Urban Horticulture, Douglas Classroom, 3501 41st Street, Seattle, WA 98195

Hosted by: Sasha Shaw, King Co. Noxious Weed Board

RSVP at:

Sandy, OR                       Saturday, June 22nd, 10:00 am – 12:30 pm

Address: Sandy Senior Center, 9310 S 1300 E, Sandy, OR, 94094

Hosted by: David Lebo, Westside Zone Botanist, Mt. Hood National Forest; Sam Leininger, Clackamas County Soil and Water Conservation District

RSVP link coming soon

This month, the North American Invasive Species Management Association and PlayCleanGo will offer a joint webinar. Join us on

May 15th at 2:00 pm ET

Bridging the Gap between Invasive Species Research and Management

Presented by: Carrie Brown-Lima, Director of the New York Invasive Species Research Institute, Cornell University, Ithaca, NY

The body of scientific literature surrounding invasive species and their impacts and management has increased substantially in recent decades. However, despite expanding knowledge and technological advances in the research sphere, a disconnect persists between research and management that can hinder the understanding and application of new solutions to on-the-ground invasive species challenges. In an effort to bridge this gap, New York State has established the New York Invasive Species Research Institute (NYISRI), which serves to communicate and coordinate invasive species research to help prevent and manage the impact of invasive species in New York State. Through interactions with researchers and managers working with invasive species, NYISRI has identified strategic areas and developed initiatives to promote communication and research that addresses research-management gaps. This presentation will examine ways to promote the co-creation of knowledge to improve the scientific basis of invasive species management and policy development as well as will provide an overview of some of NYISRI’s initiatives and the work of the New York State invasive species network.

The webinar presentation will be up to 45 minutes with an additional 15 minutes for questions. Click here to Register or follow the link below.  After registering, you will receive a confirmation email containing information about joining the webinar.

Carrie Brown-Lima is the Director of the New York Invasive Species Research Institute, Cornell University, Ithaca, NY. She has over twenty years working with governmental and non-governmental organizations, academic institutions and companies on conservation strategies, natural resource monitoring and management, ecological research, and outreach in the United States and in Latin America. Experience includes promoting partnerships, creating programs, coordinating international, national and state level workshops, strategy building, managing contracts, writing proposals and reports, as well as presenting project results and conservation concepts to diverse audiences. She has extensive knowledge of invasive species research and management. Carrie received her Bachelor of Science degree in Biology from Keen State College, Keene, NH, her Masters degree in Natural Resources from Cornell University, Ithaca, NY and is presently a Kinship Conservation Fellow.

PlayCleanGo is an education and outreach campaign for outdoor recreationists developed to promote awareness, understanding, and cooperation by providing a clear call to action to be informed, attentive and accountable for stopping the spread of invasive species.

For a complete list of NAISMA's monthly webinars, click here.  

The Western Governors’ Association (WGA) will host a webinar called Species Distribution Modeling and Scenario Planning, at 10:30 a.m. (MT) on Wednesday, May 1. 


The webinar will highlight a tool being designed by the U.S. Geological Survey and National Park Service to develop species distribution models for high-priority invasive plants. Panelists will also report on a research project that pairs scenario planning with quantitative modeling to explore potential effects of climate scenarios and management alternatives on rangelands in South Dakota. 

This webinar is part of a series for the Western Governors’ Biosecurity and Invasive Species Initiative, the central policy initiative of WGA Chair and Hawaii Gov. David Ige.

The webinar will be moderated by Jeff Morrisette, Chief Scientist with the National Invasive Species Council Secretariat. Panelists include: Terri Hogan, Invasive Plant Program Manager, National Park Service; Catherine Jarnevich, Ecologist, U.S. Geological Survey; Greg Haubrich, Noxious Weed Coordinator, Washington Department of Agriculture; and Brian Miller, Research Ecologist, U.S. Geological Survey.