Not wanting to kill the ladybugs who were mingling with about two hundred wasps, I found the solution simply in reusing a two-liter plastic bottle. http://completegarden.wordpress.com/2008/09/11/bee-safe-wasp-trap-how-to-make-your-own-for-free/
Another everyday item to use in pest control is aluminum pans for snail and slug control. Dig a wide but shallow hole in the soil near your infested plants. Place an aluminum pie pan in the hole so that the outer lip is approximately level with the soil, and fill the dish with stale beer. Slugs and snails crawl into the beer trap and drown.
Use yellow cardboard and a sticky material such as petroleum jelly to trap flying insects.
Here’s more good info to keep those pests away:
http://www.wisebread.com/pesky-pests-easy-homemade-mosquito-and-insect-traps-and-repel
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