The answer to 'flower bed disease' is that there are several common causes of disease in flower beds, including fungal infections, bacterial infections, and pest infestations. Symptoms can include discolored, wilting, or dying plants, as well as visible signs of fungi or insects.
For minor issues, homeowners may be able to address the problem through proper watering, pruning, and applying fungicides or pesticides as directed. However, for more severe or persistent problems, it's best to consult a professional landscaper or horticulturist who can properly diagnose the issue and recommend the most effective treatment.