Cooperative Agricultural Pest Survey
Fiscal Year 1996
October 10, 1996
Report prepared by Kiana Rogers
I would like to thank all of the agencies, Weed & Pest Supervisors and additional persons who took the time to provide me with information on bioagent releases, redistribution efforts and survey information.
TABLE OF CONTENTS
Appendix A - Consensus Report
Appendix B - Biological Control of Weeds - Historical Data
Prepared by Kiana Rogers
Period Covered: 10/01/95 to 9/30/96
Ms. Rogers participated in the Weed & Pest Conference in Evanston Wyoming on November 28-29, 1995. She presented a display board with color maps illustrating the 1995 biocontrol and survey activities within Wyoming in 1995. All Weed & Pest Supervisors were given a packet that contained a spreadsheet of their releases and summaries of biocontrol and survey activities for the entire state.
The April 4, 1996 Karnal bunt meeting in Cheyenne Wyoming was attended by Ms. Rogers. The agenda of the meeting was to inform all interested parties on the disease, where it was known to be, what is being done, and how the survey should be coordinated in Wyoming.
July 1, 1996, Ms. Rogers participated in the Karnal bunt meeting in Cheyenne. The survey method, lab process, and survey form were discussed.
Ms. Rogers participated in the Biocontrol Steering Committee meeting in Douglas Wyoming on August 28, 1996. The agenda included summaries of 1996 biocontrol activities, newsletter, and the introduction of Dr. David Kazmer. Dr. Kazmer has taken the biocontrol position at the University of Wyoming.
In the last six months, the Wyoming CAPS program's World Wide Web page, http://plains.uwyo.edu/~caps/caps.html, has had 530 people visit it. It averaged 2.6 hits per day during the last six months.
The site contains information on gypsy moth and cereal leaf beetle surveys, weed distribution maps, maps of biocontrol activities on weeds and insects. The 1996 maps will be placed on the page when all the county Weed & Pest Districts have completed their work.
Several individuals sent e-mail asking for information on several
topics. Ms. Rogers was not qualified to answer
several of the questions, therefore, the messages were forwarded
to parties that were more qualified. The e-mail from Mr. Jon
Gilley was forward to Dr. Bjostad, at Colorado State University,
and he did respond to Mr. Gilley. The message from Dr. Patrick
McDermott was forwarded to Dr. Jeff Lockwood, at the University
of Wyoming, and he replied to Dr. McDermott.
| Name | Organization | Disipline |
| John Larsen | USDA,APHIS,PPQ | OIC |
| Lars Baker | WY State Dept of AG | Weeds |
| Jim Bigelow | WY State Dept of AG | Entomology |
| George Hittle | WY State Dept of AG | Weeds |
| Jeff Lockwood | UW PSIS Dept | Entomology |
| Tom Whitson | UW PSIS Dept | Weeds |
| Gary Franc | UW PSIS Dept | Plant Pathology |
| Kiana Rogers | UW PSIS Dept | Computer Science |
Ms. Rogers has entered the information into the state databases as soon as the information was received. The information was then placed on National Agricultural Pest Information System, NAPIS. As of September 30, 1996, Ms. Rogers has entered 3,650 records into the state databases, see Table II.
| Number of Records | Type of Recrods |
| 361 | 1996 Cereal Leaf Beetle Survey |
| 40 | 1995 Gypsy Moth Survey |
| 5 | 1996 Russian Wheat Aphid Biocontrol Releases |
| 26 | 1996 Cereal Leaf Beetle Biocontrol Releases |
| 3 | 1996 T. julis Recoveries |
| 152 | 1996 Karnal Bunt Survey |
| 1,298 | 1996 Biocontrol of Noxious Weeds |
| 15 | 1996 Russian Wheat Aphid Suction Trap |
| 1,243 | 1995 Grasshopper Survey for WGIS |
| 507 | Weed Consensus |
| 3,650 | Total |
Based on a survey done with the Wyoming Weed & Pest Districts
Supervisors, 507 scientific consensus records for weeds were entered
into NAPIS.
A consensus record on NAPIS means the organism is acknowledged
to exist and a survey has not been performed.
The AT&T FTS-2000 Mail was accessed twice a week for messages and reports. Important pest information was forwarded to interested parties. For instance, the message dated, February 21, 1996, about Spodoptera litura, was provided to Drs. Brewer and Lockwood at the University of Wyoming. Additionally, messages detailing the detection of karnal bunt were distributed to the Plant, Soil and Insect Sciences Department at the University of Wyoming.
In July 1996, Mr. Tim Brown sent a message asking to update a
distribution map of rose rosette disease. Ms. Rogers tried to
locate someone who might be familiar with the positive record
for Fremont County, Wyoming. She was unsuccessful in finding
any information on this disease.
September 1996, Ms. Donna Ellis sent a request for information on states who have noxious weed lists. Ms. Rogers replied with a list of people to contact and forwarded the e-mail to Drs. Ferrell, Kazmer, Whitson at the University of Wyoming and Mr. Baker, Fremont County Weed & Pest Supervisor.
In 1995, six gypsy moths were found, see Figure I. During 1995 all of the counties were monitored with detection traps and Albany, Park, Teton, and Yellowstone National Park were monitored with detection and delimiting traps, see Figure II.
Detection traps for gypsy moth (Lymantria dispar L.) have been placed in all of Wyoming's counties as well as in Yellowstone National Park. Delimiting surveys are being conducted around positive finds from the previous year in Albany, Fremont, Teton, Washakie, and Yellowstone National Park, as seen in Figure III. The survey is being conducted by the Wyoming Division of Forestry. The traps have not been removed, therefore, it is unknown at this time how many gypsy moths were found. When the data becomes available, Ms. Rogers will place the information on NAPIS.
Three counties, Goshen, Laramie and Niobrara, were monitored with suction traps. The traps have not been removed yet, but as of September 30, 1996, 308 Russian wheat aphids had been captured, as seen in Table III. This is approximately 1,000 less than last year at this time. Dr. David Legg and Mr. Neel Kumar, at the University of Wyoming, are coordinating the trapping.
| Town | County | Pest | Total No. of Aphids |
| Pine Bluffs | Laramie | Russian Wheat Aphid | 191 |
| Torrington | Goshen | Russian Wheat Aphid | 99 |
| Keeline | Niobrara | Russian Wheat Aphid | 18 |
| Pine Bluffs | Laramie | English Grain Aphid | 20 |
| Torrington | Goshen | English Grain Aphid | 38 |
| Keeline | Niobrara | English Grain Aphid | 16 |
| Pine Bluffs | Laramie | Pea Aphid | 1 |
| Torrington | Goshen | Pea Aphid | 3 |
| Keeline | Niobrara | Pea Aphid | 2 |
| Pine Bluffs | Laramie | Spotted Alfalfa Aphid | 29 |
| Torrington | Goshen | Spotted Alfalfa Aphid | 30 |
| Keeline | Niobrara | Spotted Alfalfa Aphid | 32 |
| Pine Bluffs | Laramie | Corn Leaf Aphid | 86 |
| Torrington | Goshen | Corn Leaf Aphid | 156 |
| Keeline | Niobrara | Corn Leaf Aphid | 147 |
Five releases of Aphelinus albipodus of 1,000 individuals each were made for Russian Wheat Aphid. Only two of the releases were made in Wyoming in Platte county. The other three releases were made in Nebraska and Colorado. The biocontrol of Russian wheat aphid was coordinated by Dr. Brewer, at the University of Wyoming.
Sixteen counties were surveyed for the presence of cereal leaf beetle, Oulema melanopus. In 1996, positive identifications were made in Big Horn, Johnson, Park, Sheridan, and Washakie counties (Figure IV). In previous years, cereal leaf beetle has been found in Big Horn, Hot Springs, Johnson, Park, Platte, Sheridan, and Washakie.
Tetrastichus julis was recovered at three sites in Sheridan county in the summer of 1996 (Figure V). T. julis was redistributed to several locations in Wyoming.
Two other natural enemies were redistributed for cereal leaf beetle (Table V). Twenty-six releases were made for cereal leaf beetle in Big Horn, Park, Sheridan, and Washakie counties.
| Bioagent | Total Number of Releases | Total Number Released |
| Anaphes flavipes | 22 | 21,817 |
| Diaparsis temporalis | 1 | 5 |
| Tetrastichus julis | 3 | 1,196 |
| Total | 26 | 23,018 |
During the 1996 fiscal year, weeds subjected to biocontrol efforts by APHIS, Weed & Pest Districts, Bureau of Land Management, private individuals, Wyoming Agricultural Department, Nature Conservancy, University of Wyoming, and National Park Service were Carduus nutans, Centaurea diffusa, Centaurea maculosa, Centaurea repens, Cirsium arvense, Conium maculatum, Euphorbia esula, Linaria dalmatica, Linaria vulgaris, Lythrum salicaria, and Verbascum thapsus (Table VI).
| Weed | Organism Released | No. of Releases | Total No. Released |
| Carduus nutans | Rhinocyllus conicus | 12 | 2,300 |
| Carduus nutans | Trichosirocalus horridus | 11 | 2,160 |
| Centaurea diffusa | Larinus minutus | 1 | 200 |
| Centaurea diffusa | Terellia virens | 1 | 200 |
| Centaurea diffusa | Urophora affinis | 9 | 14,560 |
| Centaurea maculosa | Agapeta zoegana | 4 | 366 |
| Centaurea maculosa | Chaetorellia acrolophi | 2 | 150 |
| Centaurea maculosa | Cyphocleonus achates | 4 | 232 |
| Centaurea maculosa | Larinus minutus | 12 | 2,600 |
| Centaurea maculosa | Larinus obtusus | 4 | 1,198 |
| Centaurea maculosa | Metzneria paucipunctella | 5 | 600 |
| Centaurea maculosa | Urophora affinis | 22 | 38,560 |
| Centaurea repens | Subanguina picridus | 9 | 40,500,000 |
| Cirsium arvense | Cassida rubiginosa | 16 | 2,800 |
| Cirsium arvense | Ceutorhynchus litura | 35 | 8,500 |
| Cirsium arvense | Larinus planus | 10 | 1,500 |
| Cirsium arvense | Urophora cardui | 5 | 1,000 |
| Conium maculatum | Agonopterix alstroemeriana | 6 | 2,600 |
| Euphorbia esula | Aphthona lacertosa\czwalinae | 125 | 774,600 |
| Euphorbia esula | Aphthona nigriscutis | 925 | 2,054,100 |
| Euphorbia esula | Oberea erythrocephala | 7 | 963 |
| Euphorbia esula | Spurgia esulae | 41 | 3,460 |
| Linaria dalmatica | Brachypterolus pulicarius | 18 | 2,300 |
| Linaria dalmatica | Calophasia lunula | 6 | 800 |
| Linaria dalmatica | Gymnaetron antirrhini | 1 | 300 |
| Linaria vulgaris | Brachypterolus pulicarius | 1 | 100 |
| Lythrum salicaria | Galerucella calmariensis | 1 | 500 |
| Lythrum salicaria | Hylobius transversovittu | 1 | 82 |
| Verbascum thapsus | Gymnaetron tetrum fab | 4 | 400 |
| Totals | 1,298 | 43,417,131 |
Several new agents were released during 1996. The new agents were Larinus obtusus and Metzneria paucipunctella for spotted knapweed, Brachypterolus pulicarius for Dalmatian and yellow toadflax and Galerucella calmariensis for purple loosestrife.
The Wyoming Weed & Pest Districts were responsible for 1,243 releases on noxious weeds during the 1996 fiscal year (Table VII). A majority of the releases were made in Crook county, as seen in Table VIII. Releases were not made in Sublette or Teton Counties this year.
| Agency | Total Number of Releases |
| County Noxious Weed Department | 1,243 |
| Private/Commercial | 8 |
| State Ag. Dept. | 1 |
| State Conservation/Nat.Resources Dept. | 20 |
| U.S. Bureau Of Land Management | 5 |
| U.S. National Park Service | 4 |
| University/Extension | 5 |
| USDA-APHIS | 12 |
| County | Num. of Releases |
| Big Horn | 22 |
| Campbell | 39 |
| Crook | 775 |
| Fremont | 212 |
| Goshen | 58 |
| Hot Springs | 6 |
| Johnson | 2 |
| Laramie | 26 |
| Lincoln | 74 |
| Niobrara | 7 |
| Park | 5 |
| Platte | 25 |
| Sheridan | 35 |
| Washakie | 10 |
| Total | 1,296 |
As of September 30, 1996, 151 records for karnal bunt survey existed in the state database. The following counties were surveyed for karnal bunt: Big Horn, Carbon, Converse, Crook, Fremont, Goshen, Hot Springs, Johnson, Laramie, Natrona, Niobrara, Park, Platte, Sheridan, and Weston. Thirty negative records have been summarized and placed on NAPIS for the following counties: Campbell, Goshen, Laramie, Park, and Platte, see Appendix E for maps.
Project Coordinator: Kiana Rogers
All of the CAPS databases were maintained and the information was entered into NAPIS in a timely manner. Information was entered on the following pests: gypsy moth, cereal leaf beetle, spotted and diffuse knapweed, leafy spurge, grasshoppers, and Russian wheat aphid. Maps were produced that related to the distribution and biocontrol of the above pests, except in the below noted cases; these were subsequently distributed to USDA,APHIS,PPQ and County Weed & Pest Districts.
Several of the products were not completed due to lack of time, incomplete information, or failure to receive information before September 30th. Updated grasshopper species distribution maps were not created due to lack of time. Grasshopper density maps were not created for 1995 and 1996 because the 1996 records have not been compiled. The 1995 Gypsy Moth trap location map was produced and when the 1996 data is received the 1996 map will be produced. Maps showing the survey activity for cereal leaf beetle distribution and bio-agent releases for 1996 were produced. Ms. Rogers was unable to produce a map showing the recovery locations for Russian Wheat Aphid bioagents due to lack of information.
Wyoming Grasshopper Information System, WGIS, was redesigned to run on Microsoft® Windows version 3.1 and higher. Several intermediate versions were sent to Mr. McNary, USDA,APHIS,PPQ, to test and appropriate changes were made to the WGIS program. The final version will be completed shortly.
Project Coordinator: Kiana Rogers
Maps and reports depicting the 1996 biocontrol activities on noxious weeds and other pests were produced and delivered to all interested parities.
Project Coordinator: Mike Brewer
Summary of activities for Russian wheat aphid natural enemy project
CAPS program (1996), Reporting: Michael J. Brewer, University
of Wyoming
Survey: This activity was largely a survey project for natural
enemies previously released in wheat, barley, and especially natural
sites. Unfortunately (from project perspective), Russian wheat
aphids were at extremely low densities this year. We attempted
to modify the project by use of sentinel plants (plants infested
with Russian wheat aphid) in selected locations. At these sites,
late season (May/June) activity of Aphelinus sp. and Diaeretiella
sp. were detected in the form of mummies (because the parasites
had emerged from the mummies prior to detection, the parasite
species cannot be confirmed but they are likely Aphelinus albipodus
and Diaeretiella rapae likely based on past recoveries).
Through several years of recovery activity, it is becoming apparent
that these parasites can become very abundant late in the season.
Unfortunately due to the high sensitivity of the small grains
grown in the area to Russian wheat aphid feeding, such parasite
activity does not reduce economic levels of Russian wheat aphid
within a season. A more difficult question is whether parasitism
will reduce overall Russian wheat aphid abundance across seasons
to a point that the economic status of Russian wheat aphid is
reduced. An answer to this question would require a larger scale
multiple year project that is not possible, and possibly not justified,
in the structure of the CAPS program. Within the CAPS program,
a continued attempt to verify abundance of parasites in non-cropping
areas may be beneficial. These areas may be acting as harborage
for parasites and aphids when the environmental conditions are
not suited to high populations of Russian wheat aphids in the
cultivated areas.
Project Coordinator: Mike Brewer
Summary of activities for cereal leaf beetle insectary
CAPS program (1996), Reporting: Michael J. Brewer, University
of Wyoming
Insectary: An insectary for establishing and propagating cereal
leaf beetle parasites was established in the Powell, Wyoming area.
Anaphes flavipes, an egg parasite, was confirmed present
at the site. In a series of dissections of larvae at the site,
up to 83% parasitism was detected. In June, 1,800 larvae were
collected at the site for redistribution to other locations in
the state infested with cereal leaf beetle: Johnson County and
Big Horn County. The effort to release additional parasites from
USDA laboratories was not successful. First, the criteria for
release were not met. Second, in a late effort to release the
larval parasite Diaparsis temporalis, the shipment from
the laboratory was not coordinated with the seasonal part-time
personnel at the Powell location supported by this project. Apparently
no phone calls were made at the time of shipment. Because the
seasonal personnel work only 10-15 hours per week on this project,
no one was aware of the arrival of the shipment for four days
(the shipment arrived on a Friday). I explicitly state this problem
because of the need to create better communications. If there
are no known dates of shipment at the initiation of the project
because of release criteria, there is a crucial need for the rearing
laboratories to call the site cooperators prior to shipment.
This is both a courtesy and necessity because of the part-time
seasonal nature of the workers at the release site.
Surveys: Although not part of the project, some survey work was
done as a courtesy. Of particular interest is that no cereal
leaf beetle infestations were found in Fremont County and south
of this county. Thirty sweeps of alfalfa were taken at each sample
site.
Project Coordinator: Howard Picard
The traps for 1996 have not all been gathered. As soon, as they are gathered and the results of the trapping is known, maps will be produced and data placed on NAPIS.
Project Coordinator: Robert E. Pfadt
Submitted by R. E. Pfadt
During FY 1996 nine species fact sheets were completed and published. The grasshoppers treated were: Aeoloplides turnbulli, Arphia pseudonietana, Bruneria brunnea, Dissosteira carolina, Encoptolophus costalis, Hypochlora alba, Melanoplus alpinus, Melanoplus dawsoni, and Melanoplus keeleri. Observations, collections, caging, and photographing of four species were carried out in the summer of 1996 in preparation for publishing a new set of fact sheets on the following: Boopedon nubilum, Melanoplus borealis, Melanoplus bruneri, and Melanoplus lakinus.
Project Coordinator: Gary D. Franc
Report prepared by Gary D. Franc October 11, 1996.
A survey to detect Karnal Bunt teliospores in Wyoming-produced winter wheat is being conducted for the 1996 crop. Representative samples and/or composite samples from all wheat producing counties are being tested. Ten samples remaining from the 1995 crop were also tested. Sample collection is being done by the Wyoming Department of Agriculture and testing is being done by the University of Wyoming Department of Plant, Soil and Insect Sciences, under the direction of Gary D. Franc, Associate Professor of Plant Pathology.
Approximately 150 samples were received including samples from the 1995 crop year. Processing of samples is expected to be completed by November 1, 1996. To date, all samples processed have been negative for Karnal Bunt (Karnal Bunt teliospores were not detected).
There is great variability in the time required to process individual
samples. If considerable debris is present (weed seeds, soil,
etc) particulates result in the pellet ultimately scanned for
teliospores. Therefore, multiple slides often result for a given
sample which, in turn, requires extensive time to adequately scan.
It may be advantageous to include in the protocol for 1997 an
additional step, after sieving and before the first centrifugation,
when particulates are allowed to settle (teliospores remaining
in suspension), pouring off the supernatant and, finally, centrifuging
and processing the supernatant as described in the protocol. Alternatively,
guidelines for differential centrifugation could be developed
to initially pellet and discard debris remaining after sieving,
prior to processing the supernatant.
Project coordinator: Kiana Rogers
A database was created in Visual dBASE to maintain information of karnal bunt samples. At this time, there are 151 records in the database. Thirty have been summarized and were placed on NAPIS as soon as the lab results were known. Reports were faxed to Mr. Jim Bigelow, at Wyoming Department of Agriculture, and Mr. John Larsen, at USDA,APHIS,PPQ, when the state and NAPIS databases changed.
The database management aspect ran smoothly after a few problems were worked out. One problem with the karnal bunt survey was that some of the surrounding states were more willing to share information than others. This in the end did not prove to be a problem, because Wyoming did not collect any samples that were commingled with wheat grown in other states. Another problem was the form used. One copy of the form should have been sent to Ms. Rogers, so the information could have been entered into the database as it arrived, and then the form would have been forwarded to Dr. Franc. Ms. Rogers was under the assumption the form would have a question that stated "Elevator or On Farm (please circle one)." Because this question was absent, it was hard to distinguish the type of survey on some samples, as a result, Mr. Bigelow and Ms. Rogers had to converse several times. If this question had been on the form it would have saved several phone calls and much time. The question on the top of the form asking for the state is an unneeded question. Not one sample arrived in Dr. Franc's office that was from another state and another question on the form covers the needed information.
Entering records into NAPIS has been a slow part of the process.
At first, Ms. Rogers did not use the most up-to-date form and
the records had to be corrected. The summarizing of records based
on a one record for each elevator or on farm survey per county
for each month could not be done because of the manner in which
lab samples were processed. As samples are processed they are
summarized and placed on NAPIS.
USDA/APHIS/PPQ HISTORICAL
PEST DISTRIBUTION 09/26/96 09:33
This report includes data which have been entered into the National Agricultural Pest Information System (NAPIS) by members of the Cooperative Agricultural Pest Survey (CAPS). Best efforts are made to enter accurate and complete data, however, neither the USDA nor Purdue University certify
as to the accuracy or completeness
of the data.
Record Selection Criteria
State-County : WY
Survey-Method : 81001 'SCIENTIFIC CONSENSUS/GENERAL AGREEMENT'
= 507 records selected
(a record may reflect multiple observations)
Report Dependant Criteria
Every year containing status
Pest-Status Descriptions
+ 'POSITIVE (PRESENT)'
- 'NEGATIVE (NOT PRESENT IN SAMPLE)'
1 'NEW OR REINTRODUCED IN THE U.S.'
2 'NEW OR REINTRODUCED IN THE STATE'
3 'NEW OR REINTRODUCED IN THE COUNTY'
A 'KNOWN TO BE ESTABLISHED'
B 'NOT KNOWN TO BE ESTABLISHED'
C 'ERADICATION IN PROGRESS'
D 'ERADICATED'
==============================================================================
HOUNDSTONGUE, CYNOGLOSSUM
OFFICINALE
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
TETON 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
HALOGETON, HALOGETON GLOMERATUS
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CARBON 1996 A+
HOT SPRINGS 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
SUBLETTE 1996 A+
UINTA 1996 A+
WASHAKIE
1996 A+
THISTLE; RUSSIAN, SALSOLA
IBERICA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
BURSAGE; SKELETONLEAF, AMBROSIA
TOMENTOSA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
WASHAKIE
1996 A+
BURDOCK; COMMON, ARCTIUM MINUS
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
THISTLE; PLUMELESS, CARDUUS
ACANTHOIDES
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
CONVERSE 1996 A+
CROOK 1996 A+
GOSHEN 1996 A+
JOHNSON 1996 A+
NIOBRARA 1996 A+
PLATTE
1996 A+
THISTLE; MUSK, CARDUUS NUTANS
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NATRONA 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
TETON 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
KNAPWEED; DIFFUSE, CENTAUREA
DIFFUSA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NATRONA 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
SWEETWATER 1996 A+
UINTA 1996 A+
WESTON
1996 A+
KNAPWEED; SPOTTED, CENTAUREA
MACULOSA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NATRONA 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
TETON 1996 A+
UINTA 1996 A+
WASHAKIE
1996 A+
KNAPWEED; RUSSIAN, CENTAUREA
REPENS
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NATRONA 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
TETON 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
DAISY; OXEYE, CHRYSANTHEMUM
LEUCANTHEMUM
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
CARBON 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
LINCOLN 1996 A+
PARK 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
TETON 1996 A+
UINTA 1996 A+
WESTON
1996 A+
THISTLE; CANADA, CIRSIUM ARVENSE
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NATRONA 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
TETON 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
THISTLE; BULL, CIRSIUM VULGARE
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
WASHAKIE
1996 A+
THISTLE; SCOTCH, ONOPORDUM
ACANTHIUM
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
CAMPBELL 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
COCKELBUR; COMMON, XANTHIUM
STRUMARIUM
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
BINDWEED; FIELD, CONVOLVULUS
ARVENSIS
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NATRONA 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
CRESS; HOARY, CARDARIA DRABA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NATRONA 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
TETON 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
WOAD; DYERS, ISATIS TINCTORIA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
LINCOLN 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
TETON 1996 A+
UINTA
1996 A+
PEPPERWEED; PERENNIAL, LEPIDIUM
LATIFOLIUM
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
SPURGE; LEAFY, EUPHORBIA ESULA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NATRONA 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
TETON 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
OATS; WILD, AVENA FATUA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
BROME; DOWNY, BROMUS TECTORUM
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
UINTA 1996 A+
WESTON
1996 A+
BARLEY; FOXTAIL, HORDEUM JUBATUM
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SUBLETTE 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
ST. JOHNSWORT; COMMON (K.
W.), HYPERICUM PERFORATUM (KLAMATH WEED)
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
CROOK 1996 A+
PLATTE 1996 A+
TETON
1996 A+
LICORICE; WILD, GLYCYRRHIZA
LEPIDOTA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
LYTHRUM (LOOSESTRIFE); PURPLE,
LYTHRUM SALICARIA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
BIG HORN 1996 A+
GOSHEN 1996 A+
LARAMIE 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
SHERIDAN
1996 A+
CINQUEFOIL; SULFUR, POTENTILLA
RECTA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
CAMPBELL 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
PARK 1996 A+
SHERIDAN 1996 A+
WESTON
1996 A+
TOADFLAX; DALMATIAN, LINARIA
GENISTIFOLIA SSP. DALMATICA
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NATRONA 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
TETON 1996 A+
WESTON
1996 A+
TOADFLAX; YELLOW, LINARIA
VULGARIS
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
TETON 1996 A+
WASHAKIE
1996 A+
MULLEIN; COMMON, VERBASCUM
THAPSUS
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
CROOK 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
JOHNSON 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
SHERIDAN 1996 A+
SUBLETTE 1996 A+
UINTA 1996 A+
WASHAKIE 1996 A+
WESTON
1996 A+
HENBANE; BLACK, HYOSCYAMUS
NIGER
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
ALBANY 1996 A+
BIG HORN 1996 A+
CAMPBELL 1996 A+
CARBON 1996 A+
CONVERSE 1996 A+
FREMONT 1996 A+
HOT SPRINGS 1996 A+
LARAMIE 1996 A+
LINCOLN 1996 A+
PARK 1996 A+
SUBLETTE 1996 A+
SWEETWATER 1996 A+
TETON 1996 A+
UINTA
1996 A+
PUNCTUREVINE, TRIBULUS TERRESTRIS
STATUS ELEMENTS STATUS ELEMENTS
LOCATION YEAR LATEST RECORD(S) OTHER RECORD(S)
------------------------------- ---- ------------------- -------------------
WYOMING
BIG HORN 1996 A+
CONVERSE 1996 A+
FREMONT 1996 A+
GOSHEN 1996 A+
HOT SPRINGS 1996 A+
LARAMIE 1996 A+
NIOBRARA 1996 A+
PARK 1996 A+
PLATTE 1996 A+
WASHAKIE
1996 A+
Carduus acanthoides - Plumeless Thistle
Biological Control Agent - Curculionidae Trichosirocalus horridus
Counties released in:
PLATTE
Carduus nutans - Musk Thistle
Biological Control Agent - Chrysomelidae Cassida rubiginosa
Counties released in:
GOSHEN
SUBLETTE
Biological Control Agent - Curculionidae Rhinocyllus conicus
Counties released in:
ALBANY
CAMPBELL
CARBON
CONVERSE
CROOK
FREMONT
GOSHEN
JOHNSON
LINCOLN
NATRONA
PARK
PLATTE
SUBLETTE
SWEETWATER
TETON
UINTA
WASHAKIE
Biological Control Agent - Curculionidae Trichosirocalus horridus
Counties released in:
ALBANY
CAMPBELL
CARBON
CONVERSE
CROOK
FREMONT
GOSHEN
JOHNSON
LINCOLN
NATRONA
PARK
PLATTE
SUBLETTE
SWEETWATER
TETON
UINTA
Centaurea diffusa - Diffuse Knapweed
Biological Control Agent - Buprestidae Sphenoptera jugoslavica
Counties released in:
LINCOLN
NATRONA
Biological Control Agent - Curculionidae Larinus minutus
Counties released in:
LINCOLN
Biological Control Agent - Tephritidae Terellia virens
Counties released in:
FREMONT
Biological Control Agent - Tephritidae Urophora affinis
Counties released in:
JOHNSON
LINCOLN
Centaurea maculosa - Spotted Knapweed
Biological Control Agent - Cochylidae Agapeta zoegana
Counties released in:
JOHNSON
LINCOLN
TETON
Biological Control Agent - Curculionidae Bangasternus fausti
Counties released in:
SHERIDAN
Biological Control Agent - Curculionidae Cyphocleonus achates
Counties released in:
JOHNSON
Biological Control Agent - Curculionidae Larinus minutus
Counties released in:
FREMONT
JOHNSON
LINCOLN
NATRONA
TETON
Biological Control Agent - Tephritidae Chaetorellia acrolophi
Counties released in:
JOHNSON
LINCOLN
TETON
Biological Control Agent - Tephritidae Terellia virens
Counties released in:
FREMONT
JOHNSON
LINCOLN
SUBLETTE
TETON
Biological Control Agent - Tephritidae Urophora affinis
Counties released in:
FREMONT
JOHNSON
LINCOLN
PARK
TETON
UINTA
Biological Control Agent - Tephritidae Urophora mixed
Counties released in:
TETON
Biological Control Agent - Tephritidae Urophora quadrifasciata
Counties released in:
FREMONT
JOHNSON
LINCOLN
PARK
TETON
Centaurea repens - Russian Knapweed
Biological Control Agent - Tylenchidae Subanguina picridus
Counties released in:
BIG HORN
FREMONT
HOT SPRINGS
Cirsium arvense - Canada Thistle
Biological Control Agent - Puccinia caniculata
Counties released in:
BIG HORN
Biological Control Agent - Chrysomelidae Cassida rubiginosa
Counties released in:
FREMONT
GOSHEN
LINCOLN
PLATTE
SUBLETTE
Biological Control Agent - Curculionidae Ceutorhynchus litura
Counties released in:
ALBANY
CAMPBELL
CONVERSE
CROOK
FREMONT
GOSHEN
HOT SPRINGS
JOHNSON
LARAMIE
LINCOLN
NATRONA
PLATTE
SUBLETTE
SWEETWATER
Biological Control Agent - Curculionidae Larinus planus
Counties released in:
FREMONT
GOSHEN
HOT SPRINGS
LINCOLN
PLATTE
SUBLETTE
SWEETWATER
Biological Control Agent - Tephritidae Urophora cardui
Counties released in:
ALBANY
CAMPBELL
CONVERSE
CROOK
FREMONT
GOSHEN
HOT SPRINGS
JOHNSON
LARAMIE
LINCOLN
PLATTE
SUBLETTE
SWEETWATER
WESTON
Biological Control Agent - Tingidae Corythuca distincta
Counties released in:
ALBANY
CROOK
FREMONT
LINCOLN
NATRONA
Cirsium vulgare - Bull Thistle
Biological Control Agent - Curculionidae Rhinocyllus conicus
Counties released in:
BIG HORN
Biological Control Agent - Tephritidae Urophora stylata
Counties released in:
PLATTE
Conium maculatum - Poison Hemlock
Biological Control Agent - Oecophoridae Agonopterix alstroemeriana
Counties released in:
CROOK
PLATTE
Euphorbia esula - Leafy Spurge
Biological Control Agent - Cecidomyiidae Bayeria captigena
Counties released in:
SHERIDAN
Biological Control Agent - Cecidomyiidae Spurgia esulae
Counties released in:
CONVERSE
CROOK
FREMONT
LARAMIE
LINCOLN
Biological Control Agent - Cerambycidae Oberea erythrocephala
Counties released in:
CAMPBELL
CROOK
FREMONT
LINCOLN
SHERIDAN
Biological Control Agent - Chrysomelidae Aphthona cyparissiae
Counties released in:
CAMPBELL
CARBON
CONVERSE
CROOK
FREMONT
GOSHEN
JOHNSON
LINCOLN
PLATTE
SHERIDAN
SUBLETTE
WESTON
Biological Control Agent - Chrysomelidae Aphthona czwalinae\lacertosa
Counties released in:
CONVERSE
CROOK
FREMONT
WESTON
Biological Control Agent - Chrysomelidae Aphthona flava
Counties released in:
CAMPBELL
CONVERSE
CROOK
FREMONT
JOHNSON
LINCOLN
SUBLETTE
WASHAKIE
WESTON
Biological Control Agent - Chrysomelidae Aphthona nigriscutis
Counties released in:
ALBANY
CAMPBELL
CARBON
CONVERSE
CROOK
FREMONT
GOSHEN
HOT SPRINGS
JOHNSON
LARAMIE
LINCOLN
NATRONA
NIOBRARA
PLATTE
SHERIDAN
SUBLETTE
SWEETWATER
UINTA
WESTON
Biological Control Agent - Sphingidae Hyles euphorbiae
Counties released in:
CAMPBELL
CROOK
FREMONT
JOHNSON
LARAMIE
SHERIDAN
Hypericum perforatum - St. Johnswort
Biological Control Agent - Chrysomelidae Chrysolina quadrigemina
Counties released in:
CROOK
Linaria dalmatica - Dalmatian Toadflax
Biological Control Agent - Curculionidae Gymnaetron antirrhini
Counties released in:
ALBANY
PARK
Biological Control Agent - Noctuidae Calophasia lunula
Counties released in:
ALBANY
LARAMIE
LINCOLN
PARK
Linaria vulgaris - Yellow Toadflax
Biological Control Agent - Curculionidae Gymnaetron antirrhini
Counties released in:
LINCOLN
Lythrum salicaria - Purple Loosestife
Biological Control Agent - Curculionidae Hylobius transversovittu
Counties released in:
BIG HORN
Salsola iberica - Russian Thistle
Biological Control Agent - Coleophoridae Coleophora klimeschiella
Counties released in:
PLATTE
SWEETWATER
Biological Control Agent - Coleophoridae Coleophora parthenica
Counties released in:
LARAMIE
PLATTE
SUBLETTE
Tribulus terrestris - Puncturevine
Biological Control Agent - Curculionidae Microlarinus lareynii
Counties released in:
FREMONT
GOSHEN
Biological Control Agent - Curculionidae Microlarinus lypriformis
Counties released in:
FREMONT
GOSHEN
Verbascum thapsus - Common mullein
Biological Control Agent - Curculionidae Gymnaetron tetrum fab
Counties released in:
PLATTE
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