PESTICIDES AND BIOLOGICAL AGENTS

Pesticides   are substances   which   are    meant    for    controlling     pests.    Pesticides   are   classified   on   the   basis   of biological    mechanism function  or    application   method.   The term pesticide includes all     of     the     following:    herbicide,    insecticides           (which   may   include   insect   growth    regulators,   termiticide   ,etc.)  nematicide, molluscicide,     piscicide,    avicide,  rodenticide,   bactericide,    insect   repellent   ,    animal      repellent      and    fungicide    Pesticides     also    plays    a   crucial  role   as    a substance that   is used to modify   a    plant's   growth  (regulator),  drop   a    plant's    leaves    prematurely   (defoliant),  or act   as   a  drying   agent  (desiccant).

Biological    agents   mainly  includes   bacteria,  viruses,  fungi,  other   microorganisms   and   their   correlated  toxins .biological  agents  have a ubiquitous presence  in  the  environment  and  are  found  in  many  sectors. Biological  agents  can  cause  a wide range of adverse  health effects ,which include  :infections  caused by parasites, viruses, fungi or bacteria; allergies, and as well as chronic respiratory symptoms  activated  by exposure   to  mould and organic dusts like  flour dust, animal dander, enzymes and mites. Biological agents mainly   include bacteria, viruses, fungi, other microorganisms and their correlated toxins. They have an ability to effect human health in a variety of ways, ranging from relatively mild, allergic reactions to serious  medical  conditions even death