Robinson trap is used for

Robinson trap is used for Nocturnal insects.
Robinson trap is Large, round, plastic container. traps are used to monitor or directly reduce populations of insects or other arthropods, by trapping individuals and killing them.
They typically use food, visual lures, chemical attractants and pheromones as bait and are installed so that they do not injure other animals or humans or result in residues in foods or feeds.
Light traps are widely used to survey nocturnal moths. It Catches large numbers of moths that tend not to escape.