Citrus disease refers to a variety of illnesses that affect citrus plants, such as oranges, lemons, and limes. These diseases can be caused by bacteria, fungi, or viruses, leading to symptoms like yellowing leaves, fruit drop, and stunted growth. One of the most notorious diseases is citrus greening, which is spread by the Asian citrus psyllid insect. Effective management of citrus disease involves practices like proper sanitation, regular monitoring, and the use of resistant plant varieties. Farmers may also apply pesticides or other treatments to control pests and pathogens, ensuring healthier crops and better yields.