A reference of plants that have pest-control properties. It catalogues 2300 plant species which have been found to control pre- and post-harvest crop pests, and lists 1000 more candidate species which are poisonous or have been found to control non-insect animal parasites and diseases. Provided in tabular form are: pests controlled, plant characteristics, characteristics of the active materials, method of preparation/extraction, method of application, cautions in use, and complementary plant uses. The appendix lists 500 pest species controlled, along with the plants that control them. Nearly 1400 references are included.