New lessons learned from WA sclerotinia spray timing trials

摘要

There is high risk of sclerotinia stem rot, caused by the fungus Sclerotinia sclerotiorum, in parts of that State's grainbelt in 2017 -especially high rainfall zones.This is mainly due to conducive conditions for disease last season and potential carry-over from a wetter than average summer.Growers have been advised to plan ahead and monitor crops as they start to bloom, especially early sown canola that may need earlier fungicide applications if sclerotinia spores are released earlier than usual in the growing season.