Witches'-broom (Cherry leaf curl)

Cherry trees (Prunus cerasifera) develop dense, broom-like twig clusters from Taphrina wiesneri infection. Affected branches bear no flowers or fruit, making them conspicuous. Cut out witches'-brooms at least 12 inches below the lowest infected point to remove all fungal tissue. Proper pruning prevents regrowth and further spread.

Management depends on catching it early. Scout susceptible plants regularly and remove affected tissue before the pathogen can spread. Improve growing conditions by addressing drainage, spacing, and irrigation practices. For persistent or severe cases, contact your local Master Gardener program or Extension office for treatment options specific to your host plants.