Applying biological agents: needs and new developments for controlling foliar pests

摘要

In the laboratory, many organisms have been shown to be effective bio-control agents, yet relatively few have been developed commercially. The wide gap between laboratory and field performance is partly because users have expected to apply them as ifthey were chemical pesticides through conventional sprayers. In practice, much more attention is needed in the development of formulation and application techniques to take account of specific requirements of bio-pesticides.