Baculovirus insecticides are attractive alternatives to synthetic chemical pesticides. Naturally occurring baculoviruses are recognized as playing important roles in regulating insect populations in a variety of ecosystems and as possessing none of the negative health and environmental attributes associated with many chemical pesticides. However, baculovirus insecticides have a relatively slow speed of action, as compared to chemicals, and this has been a deterrent to commercial development. Through genetic engineering, numerous recombinant baculoviruses have been constructed which kill insects faster. In order to address the potential environment/health issues of recombinant insecticides, several recombinant virus strategies have been developed that allow for enhanced pesticidal activity and reduced probabilities of negative ecological consequences. These recombinant strategies have been field tested in the United States and the United Kingdom.