Plant-parasitic nematodes are microscopic roundworms that live in soil and can cause significant damage to plants. They feed on plant roots, leading to stunted growth, yellowing leaves, and reduced crop yields. These nematodes can infect a wide variety of plants, including crops, ornamentals, and trees. Control methods for plant-parasitic nematodes include crop rotation, resistant plant varieties, and soil fumigation. Understanding their life cycle and behavior is essential for effective management. Farmers and gardeners must monitor their fields to prevent infestations and protect their plants from these harmful pests.