Fecundity, development and survival performance of Myzus persicae on five different pepper varieties

Fecundity, development and survival performance of Myzus persicae were investigated on five different pepper varieties at the field conditions. Amiral, Erciyes, Mert, Mertcan and Naz pepper varieties which are broadly planted were selected as host plants at the study. The study was carried out at the field conditions inVan, June-July 2015. Aphids which were used at the study were produced on the every varieties at least 5-6 generations for adaptation at the laboratory conditions. Newly born single nymph was transfered to life clip with 2x2 cm heights and diameters on middle sized leave of the pepper seedlings which were groved at the field. Fifth repetations were used for each varieties. Development stages, daily reproduction and survival of pest on each varieties were recorded daily and life tables were conducted according to these data. End of the study shortest development time of pest was found on Serenat and Cümbüş varieties as 8.26 and 8.44 days. It was observed that all individuals completed their development and became adult. The life table parameters were calculated by using age stage two-sex life table method, and intrinsic rate of increase (r), net reproductive rate (R0) and mean generation time (T0) were estimated. These parameters as follows: r: 0.254, 0.256, 0.252, 0.243, 0.262 individuals/day; R0: 58.23, 61.48, 57.82, 51.54, 52.22 individuals/day; T0: 16.03, 16.06, 16.12, 16.21, 15.10 days. The intrinsic rate of increase of pest was found statistically lowest on Sarp variety. According to these results, pest has lower performance on Sarp variety than others in respect to fecundity and survivar. It was found that Sarp variety has more tolerance to harmful of pest