The answer to 'hedge disease' is that there are several common causes of hedge diseases, including fungal infections, pests, and environmental stress. Symptoms can include discoloration, wilting, and dieback of the leaves and branches. Solutions often involve a combination of pruning, applying fungicides or pesticides, and improving growing conditions.
It's important to properly diagnose the issue before attempting any treatments, as the wrong approach can make the problem worse. For mild cases, homeowners may be able to address the problem through DIY methods. However, for more serious or persistent hedge diseases, it's best to call in a professional landscaper or arborist to properly assess and treat the issue.