Knowledgebase
Boxwood turning brown? #928730
Asked April 17, 2026, 2:30 PM EDT
Washtenaw County Michigan
Expert Response
Boxwoods have several pest and disease issues, some are fatal to the shrubs, some require yearly and properly timed chemical treatment to control.
The fastest way to improve the property is to remove the shrubs and put in something else. It would also be the best long term plan, since boxwoods are no longer recommend because of their pest and disease issues.
Recommended replacements- https://www.canr.msu.edu/news/beyond-boxwood-alternative-landscape-shrubs-for-michigan-gardeners
Your pictures look like boxwood leaf miner damage. To control it there are insecticides you may apply. Please read and follow all precautions and directions on any garden chemicals you use. https://www.canr.msu.edu/news/boxwood_leafminer_a_serious_pest_of_a_favorite_landscape_plant
Here is a bulletin summarizing many of the issues with boxwood- https://www.canr.msu.edu/news/boxwood_insect_pests