Most of the plant-parasitic (stylet-bearing) nematodes belong to the order………

✅Explanation:
The order Tylenchida is the largest and most economically important group of plant-parasitic nematodes (PPNs). They are characterized by the presence of a well-developed stylet, a needle-like mouthpart used for piercing plant cells and feeding on their contents. This feeding behavior makes them significant pests in agriculture, causing damage to crops worldwide.