The SELCTV database is a compilation of the side effects of pesticides on arthropod predators and parasitoids that provide biological control of pest arthropods in the agricultural ecosystem. The primary source of side effects data is the published scientific literature; reference citations are accessible for every one of the nearly 12,600 records. Data in SELCTV represent the impact of over 400 agricultural chemicals, including insecticides, fungicides, acaricides and herbicides on 609 species of natural enemies. Documented pesticide impact on natural enemies covers 60 crop designations from nearly 60 countries around the work. Ten specific screening methods are identified, ranging from field testing to topical application. In most cases, mortality is the measurement of impact, however sublethal effects data are included where available. All impact data are translated to a common 1-5 scale for uniform comparison. Pesticide selectivity and natural enemy resistance are other types of indices included in the SELCTV database.