Limb dieback and unhealthy yellowish and dead brown leaves on an elm tree with Dutch elm disease, Ophiostoma ulmi.

A tall elm tree with branch dieback and scattered unhealthy yellowish and dead, brown foliage caused by Dutch elm disease. Credit: William M. Brown Jr., Bugwood.org
Limb dieback and unhealthy yellowish and dead brown leaves on an elm tree with Dutch elm disease, Ophiostoma ulmi. Credit: William M. Brown Jr., Bugwood.org