Annual/Termination Reports:

[03/21/2024] [03/10/2025]

Report Information

Participants

Caroline Marschner, Cornell University
Antonio DiTommaso, Cornell University
Carolyn Lowry, The Pennsylvania State University
Thierry Besancon, Rutgers University

Brief Summary of Minutes

Accomplishments

<p>The current project began on 1 October 2023, so at this point, there are not yet accomplishments, impacts, or publications to report.</p>

Publications

Impact Statements

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Report Information

Participants

Annual meeting: January 7, 2025
Philadelphia, PA

Attendees:
Antonio DiTommaso, Cornell University
Mark vanGessel, University of Delaware
Carolyn Lowry, Penn State
Maria Gannett, University of Massachussetts
Thierry Besancon, Rutgers

Brief Summary of Minutes

Start in Spring 2025

Till land - seed in 300 seeds; gently rake in & cover with soil seed soil depth 1:

Scott will contact Caroyln's technician David Dong about latest design for OTC. David long can discuss stakes to hold OTC in place

The experiment will have four blocks. Each block will have one control and one OTC plot.

Rutgers: 4 blocks 

Delaware: 4 blocks

UMass: 4 blocks

Cornell: 8 blocks (2 sites) [update: maybe 3 blocks if we have enough material]

 

Soil moisture sensors in top 5 cm of soil

Plastic tube (black) to protect wires (rodent hewing protection)

Light measurement ("dots")?

Mark vanGessel and Thierry will irrigate (sprinkle system)

Count target weeds each week and remove all weeds including non-targets after data collection each week

Katreina Chea tested OTC: no difference in soil moisture between OTC and control.

Species: 

- Velvetleaf

- Lambsquarters

- Large crabgrass

- Foxtail

- Bur cucumber?

- ivyleaf morningglory?

 

Move plots each year but in same general area

Light quantity and quality

1m square plots; sample middle 1.2 square meter [or 1.4 sq meter]

 

 

 

Accomplishments

<p>In the first year of this project, partners developed research plans for the upcoming several years, conducted some preliminary testing, and published on weed germination modeling.</p><br /> <p>&nbsp;</p><br /> <p>Objective 1:&nbsp;Evaluate how weed emergence timing vary under ambient (control) and increased temperature conditions across multiple sites with different environmental conditions (NH, PA, NY, DE, NJ).</p><br /> <p>-&nbsp; Karina Chea at Penn State tested whether OTCs impacted soil moisture, and found no difference between OTC and control plots.</p><br /> <p>-&nbsp; Carolyn Lowry's lab at Penn State University tested herbivory in OTCs and controls, and found no significant difference between the treatment and control.</p><br /> <p>-&nbsp; Cornell laid the groundwork for next year's data collection efforts, and recruited Maria Gannett of Univerity of Massachussetts to join the multistate project.</p><br /> <p>-&nbsp; The multistate group developed sampling methods and protocols for 2025 (see meeting notes).</p><br /> <p>-&nbsp; Multistate partners published a review of weed emergence modeling methods: "Modeling weed seedling emergence for time-specific weed management: a systematic review", by Marschner et al, published in Weed Science&nbsp;<a href="https://www.cambridge.org/core/journals/weed-science/article/modeling-weed-seedling-emergence-for-timespecific-weed-management-a-systematic-review/51C2B94E7C8854BB2A0DC5B4F1C2C79D">https://www.cambridge.org/core/journals/weed-science/article/modeling-weed-seedling-emergence-for-timespecific-weed-management-a-systematic-review/51C2B94E7C8854BB2A0DC5B4F1C2C79D</a>.</p><br /> <p>&nbsp;</p><br /> <p>&nbsp;</p>

Publications

<p>C A Marschner,&nbsp;I Colucci, R S Stup, A S Westbrook, C A C G Brunharo, A DiTommaso, M&nbsp;B Mesgaran. 2024.&nbsp;Modeling weed seedling emergence for time-specific weed management: a systematic review. Weed Science,&nbsp; 72(4) 313 - 329,&nbsp;DOI: https://doi.org/10.1017/wsc.2024.25</p>

Impact Statements

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