The world population is estimated to reach 9.8 billion in 2050. To secure food resources, methods of protecting agricultural products from harmful insects, microorganisms and other organisms have been examined using various synthetic chemical pesticides. However, many pesticides act as endocrine disrupters in humans and other organisms. To prevent these effects, biological controls of biological hazards are useful and effective to safely produce food resources such as fishery and agricultural products. The following mini-reviews present clues to solve the latest problems.
1) Improvement and mechanism of action of microbial pesticides (Bt) (Michio Himeno)
2) Possibility for bio-control of harmful diatom blooms in Coscinodiscus wailesii by marine bacteria (Satoshi Nagai and Ichiro Imai)
3) Virus adaptation to plants (Iwao Furusawa)
4) Biological control of fish viral diseases by Anti-Viral Substance Producing Bacteria (Mamoru Yoshimizu and Yoshio Ezura)