Witches' broom formations are seen in this Virginia ... For instance, pine brooms are commonly caused by rust fungus. Fungal infections also can affect cherry trees and blackberry bushes.

City arborists have also identified the foliar fungus infesting older American sycamores and lesser-known London Plane trees ...

Cassava Witches' Broom Disease (CWBD), a harvest-reducing pathogen originating in Southeast Asia, has crossed the Pacific and has been detected in French Guiana and Brazil. It is a fungal disease ...