Wasps like pool parties
A single wasps nest consumers anywhere between 240 to 270 flies per hour and like to eat mosquitoes. Wasps generally forage between 200-400 metres within their nests and tend to build their nests in protected areas. A favourite location is under an eaves trough and close to a water source such as a pond or swimming pool. A trick to keep wasps and flies away, that has no scientific backing and is likely an urban legend, is partially filling gallon-sized zippered plastic bags. The reflected light coming off the balloon hurts the insect’s eyes.
http://www.delta-optimist.com/opinion/blogs/deltabc-1.983313/blog-wasps-like-pool-parties-1.2040284
