My grandfather always hung a brown paper bag under the porch roof: I laughed for years before understanding why the wasps never came back
For decades, a simple brown paper bag swinging under the porch kept wasps away—and the reason is rooted in genuine insect biology. Your grandfather knew what scientists now confirm: social wasps are fiercely territorial, and a fake nest-shaped decoy convinces queens to nest elsewhere. But timing, species, and technique all matter.