Jjames from Factoryville writes
Bonide Liquid Copper Fungicide Concentrate does not actually list boxwood on the label. Once boxwood blight is present in the landscape, it is very difficult to control. Fungicide applications that are begun after the disease is already present do not provide acceptable disease control according to many online articles. It is recommended to use a product containing Chlorothalonil before the disease is an issue.
Answer last updated on: 07/07/2022