Ascochyta/Mycosphaerella Assessment Protocols (Summer 2024)
During June and July, crop scouting for the ascochyta/mycosphaerella complex in field pea is critical for assessing risk and gauging the need for and timing of an in-crop fungicide application. However, late-season crop scouting is also important as it can be used to assess the prevalence, severity, and impact of these disease issues. Assess mid-season and end-of-season field pea mycosphaerella levels at:
- Early flowering stage – Typically at growth stage R2 when at least one node or more has the first flowers that are open.
- End of season – Typically at the R4 stage or full pod stage, but before R5 when leaves start to turn colour and pods in the lower canopy range in colour from yellowish to brown.
Updated assessment protocol for the Ascochyta/Mycosphaerella complex of field pea
Updated identification guide for the Ascochyta/Mycosphaerella complex of field pea
Updated disease info card for the Ascochyta/Mycosphaerella complex of field pea