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Dec5

From Awareness to Advocacy to Cutting Edge Research: Inspiring Change on World AIDS Day

Dec 5, 2024, 12:00 - 1:30 PM

Zoom Webinar, please RSVP for link

Dec5

Winterize Your Career Planning for Success Next Summer

Dec 5, 2024, 4:00 - 4:45 PM

Dec5

5 December (GEOL) Sumit Mishra, Genesis of Manganese Deposits

Dec 5, 2024, 4:30 - 5:45 PM

Exploratory Hall 1309 and via Zoom (for link, email bhupp@gmu.edu) 

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MS Thesis Defense - Environmental Science and Policy

Nov 7, 2024, 6:00 - 8:00 PM

Potomac Science Center, Room 3102

MS Thesis
Department of Environmental Science and Policy
College of Science
George Mason University 

 

Candidate: Ryan McIntyre
Defense Date and Time: November 7, 2024 at 6:00pm
Defense Location: Potomac Science Center, Room 3102
Title: Phenology of Two-Horned Water Chestnut Following Three Management Strategies: Herbicides, Harvesting, and Water Level Drawdown
 

Thesis Director: Dr. Cynthia Smith
Committee:  Dr. Joshua Davis, Dr. Nancy Rybicki 


ABSTRACT 

 

Two-horned water chestnut (Trapa bispinosa) is an invasive freshwater macrophyte recently introduced to the DC Metro region. Several groups are working to control the plant, each using a different methodology. This study developed a standardized monitoring protocol to establish the effectiveness of each management technique, including manual harvesting, herbicide application, and water level drawdown. Plots treated with manual harvesting or the herbicide Flumioxazin were able to recover and still have mature fruits by the end of the growing season. Water level drawdown and the herbicide Fluridone yielded 0% cover in experimental plots by the end of the season.