Toxicity and effect of nicotine dust and methoprene on the fertility and fecundity of red cotton stainer dysdercus koenigii [fabr] [hemiptera: pyrrhocoridae] of KU strain

The adults of Dysdercus koenigii [Fabricius] were treated with different concentrations of nicotine dust and methoprene and the LD 50 was calculated as 60.00 micro g/adult and 6.8 micro g/adult, respectively and it was observed that methoprene has lesser LD50 as compared to nicotine dust but produces more abnormalities. It was also observed that both compounds increase the hatching period