The answer to 'why is my hedge disease' is that there are several common causes of hedge diseases, including fungal infections, pest infestations, and environmental stress. Symptoms may include discolored or wilting leaves, dieback, and overall decline of the hedge. To address the issue, it's important to first identify the underlying cause and then take appropriate action.
If the hedge is showing signs of disease, it's best to start by closely inspecting the plants for any visible signs of pests or fungal growth. Consult a local horticulturist or landscaping professional to help diagnose the problem. They can recommend the most effective treatment, which may involve pruning, applying fungicides or pesticides, or adjusting soil conditions or watering practices.