Persistence, The laboratory experiment was conducted to investigate the persistence of imidacloprid 600 FS against brown plant hopper and green leaf hopper, to standardize the incubation period of paddy seeds before seed treatment and impact on germination and seedling vigour. The results revealed that twenty hours incubation period before treatment is finest and does not affect germination percentage. Moreover seed treatment did not influence seedling length and vigour. The imidacloprid treated plants @ ml kg-1 seed exhibited higher persistence up to 50 days against brown plant hopper and green leaf , Seed treatment, Brown plant hopper and green leaf hopper. | In vitro evaluation of persistent toxicity of imidacloprid 600 FS against brown plant hopper and green leaf hopper and its impact on germination and seedling vigour in rice
