Microbial Degradation of Pesticides.- Enzymes Involved in the Metabolism of Organophosphorus, Carbamate and Pyrethroid Insecticides.- Insecticide Compounds, Acting on the Acetylcholine Receptor of the Insect Nervous System.- Chemical Manipulation of Desiccation and Defoliation and Essential Aspects for the Application and Development of New Chemical Compounds in the Future.