The answer to 'shrub disease' is that there are several common causes of shrub diseases, including fungal infections, bacterial infections, and environmental stressors. Symptoms can include discolored or wilting leaves, spots or lesions on leaves and stems, and overall decline in plant health. Solutions often involve proper pruning, applying fungicides or bactericides, and addressing underlying environmental issues.
It's important to properly identify the specific disease affecting your shrubs before attempting treatment. For mild cases, homeowners may be able to address the problem through DIY methods. However, for more severe or persistent shrub diseases, it's best to consult a professional landscaper or arborist who can properly diagnose the issue and recommend the most effective course of treatment.