Here’s an interesting story:

Buddhist monks, who are bound by faith to nonviolence, are grappling with how to rid a temple of a severe ant infestation without killing the insects.
Stinging red ants have plagued the Hong Hock See Temple in northern Penang state for a year, causing one worshipper to be bitten so badly last month that he had to receive hospital treatment, said Elma Lin, a temple volunteer worker.
A temple disciple tried using a vacuum cleaner to gather up the ants before freeing them in a nearby forest, but the method failed to purge the insects, Lin said.
“We haven’t found a solution so far,” Lin said. “Nothing has worked.”

So, what should they do? How can you get rid of insects without killing them?