Management of Botrytis grey mould caused by Botrytis cinerea in lentil using boscalid fungicide

• DOI: 10.1080/07060661.2021.1873865
• Publication Date: 2021-01-14T04:38:00Z
• Authors: Mark E. Kuchuran; Cheryl Armstrong-Cho; Sabine Banniza
• Keywords: Botrytis

Under cool and wet conditions, high levels of botrytis grey mould (BGM) can occur on lentil in western Canada. Identification local Botrytis isolates from based conidial morphology (N = 74) sequence analysis 5) indicated that B. cinerea was the predominant cause BGM this region. Eight field experiments at two sites (Saskatoon, SK Outlook, SK) over seasons were conducted to evaluate optimal timing fungicide boscalid for control cultivar 'CDC Grandora'. Weather conditions limited disease development one year, but moderate observed four other year. In all experiments, a single application mid-flower early-seeded early flower late-seeded as efficacious double or triple boscalid. There no differences among treatments, Outlook they lowering application. Despite some severity applications, none treatments had an effect yield seed infection, there correlation between petal colonization by under study conditions.