Interested Members of the University Community are invited to attend the Final Oral Examination for the Degree of Master of Science of Trust Katsande of the Department of Plant Agriculture.

Date: Wednesday, September 4th
Time: 1:30 PM
Location: In Room 131, Pestell Student Service Centre, Ridgetown Campus

Available in Guelph via intercom in Room 202, Crop Science Building

Thesis Title: Evaluating seed treatments for the management of soybean cyst nematode (Heterodera glycines Ichinohe) in dry bean (Phaseolus vulgaris L.).

Advisory Committee
Dr. Chris Gillard, Advisor 
Dr. Art Schaafsma
Dr. Cheryl Trueman
Dr. Katerina Jordan

Examination Committee
Dr. Peter Sikkema, Chair
Dr. David Hooker (External Examiner)
Dr. Chris Gillard
Dr. Art Schaafsma        

ABSTRACT

Soybean cyst nematode (Heterodera glycines; SCN) infestation is a major cause of yield loss in soybean (Glycine max), and dry bean (Phaseolus vulgaris) is an alternative host. In soybean, genetic resistance and seed treatments are mainly used for SCN management however these options are not available in dry bean. Seven seed treatments were assessed for their effects on SCN populations in black (cv. Zorro) and kidney (cv. Dynasty; Red Hawk) bean. Two field studies were conducted in 2018 on naturally infested soils near Highgate and Rodney, Ontario. In addition, two separate growth cabinet studies were completed. There was little treatment response in the field studies. In the first growth cabinet study, Bacillus amyloliquefaciens and Bacillus firmus reduced cysts in black and kidney bean while fluopyram reduced cysts in Red Hawk only. In second study, fluopyram reduced cysts by 49% and 87% in Dynasty and Red Hawk, respectively while the other treatments were inconsistent.