The purpose of investigations gives information of baculovirus preparats, and how baculovirus evolution, host range determination and pathogenesis have contributed to their inherent safety for non-target organisms. The virus also can accumulate themselves in the environment and the host population, and it can control the pest insects for a long term by forming epidemic disease in the pest insect population through the external environment stimulation. The quite stable food chain relation of plant-pest insect- natural enemy can be gradually established. Thus it can reduce the risk of the pest insect continuous outbreak and realize the persistent control. Here, we describe a formulation technology for biopesticides in which the active ingredient (baculovirus) is an active coal. Importantly, this indgredient protects the sensitive viral DNA from degrading in sunlight, but dissolves in the alkaline insect gut to release the virus, which then infects and kills the pest. We show, using this ingredient, in both laboratory bioassays and field tests, that this can extend the efficacy of the biopesticide well beyond the few hours of existing virus formulations, potentially increasing the spray interval and reducing the need for high application rates. The new formulation has a shelf-life at 30 °C of at least 6 months, which is comparable to standard commercial biopesticides and has no phytotoxic effect on the host plants. The use of Baculoviruses as viral Biopesticides presents a relatively cheap, practicable, environmental friendly and potent tool for Biocontrol of insect pests of agricultural importance of farm crops and stored products. We present here a novel formulation technology that effectively safeguards the efficacy of a baculovirus biopesticide by protecting the sensitive viral DNA from damaging UV radiation in sunlight on the crop. This technology is a highly promising candidate formulation, whose adoption in baculovirus and other biopesticide formulations could greatly increase the persistence and effectiveness of biopesticides while reducing costs. This novel formulation could be a means of greatly expanding the use of biopesticides to move them from the role of niche products for high-value and protected crops into large-scale field crop use. This would meet the need for a safer, more ecologicallyacceptable, pest control approach to replace.