Dr. P.G. ShahSusheel Singh2017-10-032017-10-032006http://krishikosh.egranth.ac.in/handle/1/5810032070Fipronil [() -5-amino-1-(2,6-dichloro-,,-trifluoro-p-tolyl)-4-trifluoro -methylsulfinylpyrazole-3-carbonitrile] is a broad spectrum, low use rate insecticide of phenyl pyrazole group having novel mode of action that targets the γ- aminobutyric acid (GABA) receptor system of insects, causing neural excitation, paralysis and death. It can generally be applied at low to very low dose rates to achieve effective pest control. Fipronil degrades slowly on vegetation and relatively slowly in soil and in water with a half-life ranging between 36 h and 7.3 months depending on substrate and conditions. It is relatively immobile in soil and has low potential to leach into groundwater. It is highly toxic to bees, aquatic organisms and some of the species of natural insect enemiesenAgricultural ChemistryStudyThesis