Cheesecloth Keeps Mosquitoes Out of Cisterns


This file appears in: Mosquitoes and Yellow Fever

These cisterns have been covered with cheesecloth in order to prevent mosquitoes from breeding there while still allowing them to collect water. In addition to cheesecloth, some citizens poured petroleum on top of the water in their cisterns. Since the two do not mix, the oil would float, preventing mosquitoes from landing without polluting the water supply.


This file appears in: Mosquitoes and Yellow Fever