INSECTICIDES INDUCED RESURGENCE OF SUCKING PESTS IN PADDY: A REVIEW

Abstract

Insecticide induced resurgence of sucking pest [planthoppers (brown Planthopper, Nillparvata
lugens and white backed planthopper, Sogatella furcifera & leafhoppers(Nephotettix virescens and N. nigropictus]
in paddy crop reveals that the insecticides of organochlorine, organophosphate, carbamates and synthetic
pyrethroids induced resurgence in hoppers. Insecticides of neonicotinoids, IGRs and botanicals are effective and
frequently used against hoppers management in paddy crop. Imidacloprid, a neonicotinoid is a key insecticide
universally used for control of hoppers, but resurgence inducement is cropping up against neonicotinoid
particularly imidacloprid. Reports reveals that sublethal doses along with number of spray, spray schedule, spray
interval and methods of spray effects frequent outbreaks/resurgence of hoppers population in paddy crop.
Insecticides effects longevity, lifecycle, reproduction, sex ratio etc. of hoppers. Insecticidal application also effects
plant structure and its biochemical composition which in turn influences resurgence of hoppers.