Plant Diseases by Photo is an Android application designed to help users quickly identify plant diseases, learn how to treat them, and prevent future occurrences. The app features a collection of photos showcasing common plant diseases, allowing users to zoom in for detailed examination. By clicking on a specific disease, users can access comprehensive information including disease descriptions, treatment methods (both traditional and chemical), and a list of plants most prone to the disease. Additionally, the app offers insights on preventing diseases in various plants such as flowers, trees, berries, and vegetables.

In the "Fungicides" section, users can explore definitions, applications, and classifications of fungicides, along with organic fungicide recipes for eco-friendly plant protection. The app also provides a similar detailed overview of insecticides in the "Insecticides" section, including organic insecticide recipes. As a bonus, users receive a lunar sowing calendar to assist in plant care and gardening activities.