The answer to 'hedge disease' is that there are several common causes of hedge diseases, including fungal infections, pest infestations, and environmental stressors. Symptoms can include discoloration, wilting, and dieback of the hedge foliage. Solutions often involve identifying the underlying cause and taking appropriate action, such as pruning, treating with fungicides or pesticides, or adjusting growing conditions.
In many cases, homeowners can address minor hedge diseases through DIY methods. However, for more severe or persistent issues, it's best to consult a professional landscaper or horticulturist who can properly diagnose the problem and recommend the most effective treatment.