Thank you Graham.
The very first Precept reads:
1. I undertake the training rule to abstain from taking life.
Pāṇātipātā veramaṇī sikkhāpadaṃ samādiyāmi.
This includes all life, not just human life.
Here is a sample of the hundreds of sites which explain how to catch and release, or just repel, what humans regards as pests - without breaking the First Precept.
Category:Insect repellentsFrom Wikipedia, the free encyclopedia
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Insect repellents (or uncommonly insectifuges) repel insects but do not kill them. Therefore, they are not technically insecticides nor technically pesticides. This category contains articles on insect repellents that are not insecticides, meaning that their main purpose/function is not to kill but to repel. Articles here may relate to chemical, physical or biological barriers.
http://en.wikipedia.org/wiki/Category:Insect_repellents Compassionate garden pest control - no kill gardening http://www.democraticunderground.com/1002903284 Non-lethal methods of rat controlhttp://www.ehow.com/way_5542345_nonleth ... ntrol.html I remember lots of field mice coming into my house. I bought a Mouse House, a non-harming trap, and mice food and caught four or five. I kept them in the Mouse House for a few weeks, and then released them next to a creek in the bush after digging a safe nest for them.
with metta
Chris