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Meeting Registration

Registration is open! You can register via the member portal or if you are a non-member you can join and register here.

Registration Fees:
Regular Member – $225
Student – $100

We will update you as more information becomes available on where you can view the great program we have lined up.

Important Deadlines

Submission Process Opens: Monday, November 2, 2020
Titles Submissions: Wednesday, December 9, 2020
Abstract Submissions: Monday, February 8, 2021
Oral and Poster Presentation Submissions: Monday, February 8, 2021
Poster Session Opens: Monday, February 22, 2021

Western Society of Weed Science Call for Papers

The 74th annual conference of the Western Society of Weed Science will be held March 1-4, 2021 and will be virtual.  The meeting will be a joint meeting with the Western Society of Aquatic Plant Management.  All WSWS members are invited to participate in the virtual program by presenting a paper as an oral presentation or display in the poster session. Oral presentations will be prerecorded and are strictly limited to fifteen (15) minutes, and that includes a 2 to 3-minute period to respond to live questions from the audience.  Multiple presentations by an author can be accommodated if the program schedule allows. If an author submits multiple presentations but the program does not allow time for them, the author will be contacted to determine priority of inclusion. Abstracts of the presentations will be published in Volume 74 of the Proceedings of the Western Society of Weed Science.


Speakers participate in symposia by invitation only. Deadlines and procedures for preparing and submitting titles and abstracts of symposium papers are the same as for volunteer oral paper presentations. Individual symposium organizers will submit their titles, co-authors, and abstract into the system.


Abstracts are required for both oral and poster presentations. All titles, authors, abstracts, and indexing information must be submitted online through the WSSA Title and Abstract Submission System ( Submissions will be accepted beginning November 2, 2020 and will close December 9, 2020.  Titles will not be accepted after this date.

The Program text will be printed exactly as submitted, other than format and font changes for uniformity; therefore, proofread your submission very carefully. Primary contact authors will receive an email indicating their abstract was received and a later email confirming the section/day/time when and how the paper/poster will be presented.   The program will be posted on the WSWS website ( ) and members will be informed when it is available by email from Eric Gustafson, WSWS Business Manager.


Abstracts for the student competition must be no longer than 250 words.  Abstracts for other presentations are limited to one page.  WSWS will NOT retype or make typographical corrections on abstracts submitted for the WSWS Proceedings. Each author is responsible to submit the abstract ready for publication following the guidelines printed below and on the website. Please refer to and follow instructions on the WSSA Abstract site for the most current content and style guidelines. See recent WSWS Proceedings Volumes for examples of abstracts (

Title: Submit your title text exactly as you want it to appear in the program. Use title capitalization, i.e., capitalize the first letter only of all main words. Use only common or coded names of herbicides (not trade names) and common names of weeds and other plants.

Authors: Use the dropdown feature to search for authors to be included. Authors who have previously submitted through the website may appear in the dropdown menu listing. If an author is not found, enter author information as directed on the website. The site will format the author list for you.

Body of the Abstract: The abstract should be written as a single paragraph and contain brief descriptions of the research and the methods used as well as a descriptive summary of the results obtained. The abstract should contain meaningful information on completed research.. The abstract should include a brief overview of essential aspects of experimental procedures and should highlight significant results and their interpretation. Write the abstract so it consists entirely of information. Abstracts containing statements such as “The results of the experiments will be presented” or “The significance of these results will be discussed” may result in rejection of the paper.

Abbreviations: See… for approved abbreviations for frequently used terms or phrases that need not be defined.

Numbers: Use Arabic numerals for numbers with two or more digits and for measurements of time, weight, and degrees, except when the number is the first word of a sentence. Spell out numbers less than 10 or when they are the first word of a sentence, except when they constitute a series in which one number has two or more digits. Write 10 by 20 rather than 10 x 20 and 1 to 5 rather than 1-5. Units: Either English or SI (metric) units are acceptable. However, do not mix English and SI units in the abstract or presentation.

Plant names: The Proceedings will contain a subject index; therefore, authors must identify the plants in their abstracts on the abstract submission form so the proceedings index can be compiled accordingly. Weeds can be appropriately identified in the abstract by using only the WSSA-accepted common names.  A list of WSSA approved common can be found at  Listing the Latin binomial for these plants is not necessary. If a plant name is not in the Composite List of Weeds, include the Latin binomial plus authority in parentheses after the common name at the first mention.

Herbicide names: The proceedings will contain a subject index that includes common and coded herbicide names with corresponding chemical names. Authors must identify the herbicides mentioned in the abstract on the on-line form to be indexed correctly. Usually, only common names or code numbers will appear in the printed abstract, but the authors must communicate to the Editor on the abstract submission form the identity of the herbicides.  A list of common and chemical names of herbicides approved by the WSSA is available at   Other herbicides must be identified by giving the code number followed by the chemical name in parentheses, if the chemical name is known. Do not use abbreviations for common names or code numbers of herbicides.

Herbicide rates: Express rates as ai (active ingredient) or ae (acid equivalent), whichever applies, not as formulated material. It is appropriate to mention the specific ester or salt of an herbicide utilized in the research for clarity purposes. Express rates as a decimal; do not use fractions (0.5, not 1⁄2). Place a zero to the left of the decimal (0.5, not .5) and do not add terminal zeros (0.5, not 0.50; 1, not 1.0).

Approval: If your agency or institution requires official approval for this type of publication, you are responsible for obtaining such approval. Remember, to maintain the quality of the Proceedings that has been established over the years, all authors must follow these guidelines. Submitted abstracts that do not conform to this format requirement will not be published.


More information about the Poster and Oral Presentation Sessions will be made available as we finalize the virtual platform that will be used.  We will also provide more information about how posters and presentations will be submitted.


Program Committee Members:

WSWS Program Chair: Sandra McDonald (contact:

WSWS Research Chair: Mithlia Jugulam (contact:

WSWS Education and Regulatory Chair: Todd Neel (contact:

Ex-off: Eric Gustafson (contact:


Section Section Chair 2021
1.       Project 1-Weeds of Range, Forestry, and Natural Areas Shannon Clark –
2.       Project 2-Weeds of Horticultural Crops Harlene Hatterman-Valenti –
3.       Project 3-Weeds of Agronomic Crops Joseph Ikley –
4.       Project 4-Teaching and Technology Chris Mayo –
5.       Project 5-Basic Biology and Ecology Neeta Soni –
6.       Sustaining Member Exhibits Alan Helm –
7.       Poster Sessions Clarke Alder —
8.       Student Contest Dennis Scott –