Leaf Spot is a common term used for a number of fungal and bacteria-derived diseases that infect the foliage of shade and ornamental trees as well as other plants.

Leaf Spots are usually brownish, but sometimes tan or black. Some are raised, shiny, and coal black; others may fall out, leaving ragged holes. Concentric rings around the spots may also be present, and some defoliation may occur. Also see Anthracnose and Black Spot for similar diseases.


Cultural Controls

  • Leave enough space between plants to allow for proper air circulation.
  • Prune to keep plants open in the center.
  • Keep leaves dry. Water early in the morning so moisture will dry from leaves by nightfall. Avoid overhead watering.
  • Remove and dispose of infected plant parts. Do not add to compost.