Noninfectious diseases, which account for 70 to 90 percent of all plant problems in urban areas, can be caused by such factors as nutrient deficiencies, temperature extremes, vandalism, pollutants, and fluctuations in moisture. Noninfectious disorders often produce symptoms similar to those caused by infectious diseases; therefore, it is essential to distinguish between the two in order to give proper treatment.
This index is meant as an educational tool only to promote tree & shrub health awareness.
Proper identification by a certified arborist is recommended if you have unexplained tree or shrub problems.
