Pests, Diseases & Plant Health covers the living problems that damage crops, gardens, trees, flowers, and seed production. This category brings together insect pests, beneficial insects, pest ecology, fungal diseases, bacterial diseases, plant viruses, weed-control tools, pesticides, herbicides, and rodent control. The main idea is simple: healthy plants begin with accurate identification. A curled leaf, yellow spot, chewed stem, wilted seedling, or damaged fruit can have very different causes. Some problems come from insects. Some come from fungi, bacteria, or viruses. Others come from poor drainage, heat, drought, herbicide drift, nutrient stress, or animals. This category helps organize those subjects in one place so plant problems can be understood before treatment is considered. It also separates pest control from plant health, because strong soil, clean seed, airflow, sanitation, crop rotation, and observation often prevent problems before sprays or stronger controls are needed.