The document describes different types of traps used for pest surveillance, including light traps, bait traps, pheromone traps, and sticky traps. Light traps use a light source to attract moths, hoppers, and beetles but can also trap non-target species. Bait traps rely on attractants like food but the bait needs frequent changing. Pheromone traps use synthetic sex pheromones to attract specific pest species without needing power. Sticky traps are used to monitor pests like whiteflies, thrips, and aphids but can also trap beneficial insects.