Friday Philosophicals run most Fridays by Zoom (check the schedule). Seminars start at 3:30 pm and are expected to end by 4:20 pm.
April 23, 2021
Wireworms, the larval stage of click beetles (Coleoptera; Elateridae), are a significant pest of vegetable crops worldwide. Wireworms have caused considerable damage to corn, wheat, and potato crops in North America, Europe, and Asia. According to recent research, certain cover crops can reduce wireworm populations by using natural compounds released by the growing plant (allelopathy) or after being mulched into the soil (fumigants). I will investigate whether buckwheat, brown mustard, and sorghum-Sudan grass, combined with two different strains of Metarhizium brunneum, an entomopathogenic fungus, could be applied as a strategy to reduce wireworm populations in southwestern Ontario potato fields. This study will also focus on the potential interaction between these allelopathic cover crops and Metarhizium brunneum.
Ginseng replant disease (GRD) is of high significance to the Ontario ginseng industry as it can cause the complete loss of ginseng crops. Replant disease occurs when a new ginseng crop is planted in a field where ginseng was grown previously. The prevalence of GRD has since limited the amount of land in North America that is available to grow ginseng. Several pathogens that have been discovered to cause rot include: Neonectria, Ilyonectria, Phytophthora and Pythium. This project will investigate new primers that permit identification of individual species of certain target fungi. Using new and pre-existing primers, I will compare the fungal and oomycete communities present in ginseng replant soil (collected in 2022) and the first and fourth years of a new healthy ginseng crop (collected in 2018 and 2022). Next-generation sequencing (NGS) will be used to identify what species are present in the soil for each garden site.
Schedule for the Winter Term 2022
|Seminar Date||First Speaker||Title||Second Speaker||Title|
|21-Jan-22||Jacob Simanek||TBA||Jessica Stokes-Rees||TBA|
|28-Jan-22||Campbell McKay||TBA||Scout Thompson||TBA|
|4-Feb-22||Trevor Pettit||TBA||Jessica Deakin||TBA|
|11-Feb-22||William Laur||TBA||Corrine Genier||TBA|
|18-Feb-22||Spencer Heuchan||TBA||Kiana Lee||TBA|
|4-Mar-22||Shayla Kroeze||TBA||Patricia Rokitnicki||TBA|
|11-Mar-22||Mehta Balsara||TBA||Paul Wan||TBA|
|18-Mar-22||Benjamin Souriol||TBA||Michael Bonneville||TBA|
|25-Mar-22||Christian Buchanan-Fraser||TBA||Lauren Witterick||TBA|
|1-Apr-22||Shyanika Nissanka Pedi Durayalage||TBA||Simone Miklosi||TBA|