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  1 - A comparison of the effects of sublethal Loses of Acetamiprid and Pirimicarb on life table parameters of Myzus persicae (Hem.: Aphididae)
  S. Tajedin M. Razmjo M. H. Besharat Nejad
  Myzus persicae (Sulzer) is one of the most important pests of pepper in greenhouses. In this research, the toxicity of Acetamiprid and Pirimicarb was studied on wingless adults of M. persicae.  Also, effects of sublethal concentration(LC25) of the two insecticodes More

  Myzus persicae (Sulzer) is one of the most important pests of pepper in greenhouses. In this research, the toxicity of Acetamiprid and Pirimicarb was studied on wingless adults of M. persicae.  Also, effects of sublethal concentration(LC25) of the two insecticodes on life table parameters of M. persicae was tested under laboratory conditions (25 ± 1°C, 65 ± 5% R.H. and a photoperiod of 14: 10 (L: D) h.). The LC50 values of Acetamiprid and Pirimicarb were 51.75 and 54.08 ppm, respectively. Survival rate (lx) of M. persicae decreased more quickly to zero in the Acetamiprid treatment compared to control and pirimicarb treatment. Acetamiprid and Pirimicarb significantly reduced adult longevity in comparison with the control. The mean adult longevity of M. persicae was 9.64, 2.30 and 3.07 days in the control, acetamiprid and pirimicarb treatments, respectively. The highest and lowest net reproductive rate (R0) and gross reproductive rate (GRR) of M. persicae was observed in the control and acetamiprid, respectively. The intrinsic rate of increase (rm) of the green peach aphid was 0.547 day-1 in the controland decreased in Acetamiprid (0.114 day-1) and Pirimicarb (0.136 day-1) treatments. The results of this study showed that imidacloprid and Pirimicarb can be effective against M. persicae. and these insecticides cawldbe suggested for controllig M. persicae in greenhouses.   Manuscript profile