The document discusses various types of biopesticides, which are formulations containing microorganisms like bacteria, fungi, viruses or protozoa that are pathogenic to pest populations. It describes different tactics of biological control using hyperparasites and suppressive soils to eradicate pathogens. The main types of microbial biopesticides covered are viral, bacterial, fungal, nematode, herbicide, and protozoan biopesticides. Advantages include lack of harmful residues and potential for lower costs and greater effectiveness than chemical pesticides. Disadvantages involve issues with specificity, speed of action, and variability in efficacy.