In our air conditioned environment, some of us pass on picnics and outdor activities during the summer months.
Main reason is some of us cannot deal with bugs, flies, bees and the like.
Some of us crave a 'nature free' natural setting, clean (aseptized) surroundings similar to photo edited models on covers of magazines.
An upcoming book from Cheviot Publishing The Story of the Fly and How it Could Save the World written by Jason Drew and Justine Joseph echoes that.
As a teaser check Jason Drew TEDxObserver Talk in 2011 on flies and protein creation.
Flies in my wine for Green Day # 232