- This event has passed.
Seminar: Stephen Ippolito: Weed Hosts for Guava Root Knot Nematode and Potential Herbicides for Use Post-transplant in Sweetpotato
April 29 | 9:00 am - 10:00 am
Date: Monday, April 29, 2024
Time: 9:00 am
Speaker: Stephen Ippolito, PhD Introduction Seminar
Title: Weed Hosts for Guava Root Knot Nematode and Potential Herbicides for Use Post-transplant in Sweetpotato
Host: Dr. Katie Jennings
Location: 121 Kilgore / Hybrid
Join Zoom Meeting: https://ncsu.zoom.us/j/94039908453?pwd=WkJkRTMydWMydVY5YUVpeWlrYytXdz09
Meeting ID: 940 3990 8453
Passcode: 802309
Seminar_Stephen Ippolito_4.29.24.pdf
Abstract:
In the U.S. sweetpotato is an economically important crop with 133,000 acres planted in 2022. North Carolina is the leading producer of sweetpotato with more than 60% of the sweetpotato planted in the US in 2022. However, weed competition with sweetpotato can reduce yield and leave it susceptible to infection from pathogens and insect pressure. With a prostrate growth pattern, sweetpotato is particularly susceptible to competition for light with large broadleaf weeds such as Palmer amaranth. Meyers et al. (2010) reported as high as 81% marketable yield loss from competition with Palmer amaranth. In addition, greenhouse research conducted by Schwarz et al. (2023) reported many weed species including Palmer amaranth acting as hosts for Guava root knot nematode.
The addition of herbicides with alternative modes of action can help mitigate weed competition with sweetpotato as well as reduce selection pressure for herbicide resistance in weed populations. In addition, reducing weed populations may also help to prevent weeds from acting as a host for GRKN. To further examine the role of weeds as a potential host for GRKN weed samples will be collected from commercial fields with suspected or confirmed GRKN.