Boxwood Blight Information Page
Boxwood blight (Cylindrocladium pseudonaviculatum) is a new disease to Canada, and has been found in Ontario and B.C. Growers, retailers and landscapers are advised to learn the symptoms and be aware of the disease, as it can spread rapidly, causing significant defoliation and branch dieback.  
                                                                                              
Customers should beware of “free from” claims

Boxwood blight confirmed at Ontario nursery
 
Emergency use registrations for boxwood blight  

Best management practices