Population parameters of Tetranychus turkestani (Acari: Prostigmata: Tetranychidae) on fourteen melon genotypes

The antixenosis effects of galia, cmd-158, cmc-132, cmi-157, cmi-167, cmi-175,ananasi, yellow canary, samsoori, honey dew, bargney, cm-170, khaghani andgarmsari, and the life table parameters of t. turkestani on cmc-132, cmi-167,ananasi, samsoori, honey dew and bargney, were examined at 28 ± 1°c, 65 ± 10 %rh and a photoperiod of 16:8 l:d. in free-choice assay, the lowest preferences byadults were observed on cmi-167, samsoori and ananasi opposed to honey dew andbargney were preferred the highest by adults of t. turkestani. the longestdevelopmental times for both sexes were observed on cmc-132 and ananasi, while theshortest developmental times were obtained on honey dew, samsoori for females. thelowest total fecundity was observed on cmc-132 whereas the maximum was on honeydew. in addition, the highest value of intrinsic rate of increase (rm), net reproductiverate (r0), finite rate of increase (?) of t. turkestani were observed on the honey dew.the weibull and enkegaard models were used to fit survivorship (lx) and age specificfecundity (mx) data, respectively. the comparison and cluster analysis of biologicalparameters of t. turkestani on different melon genotypes demonstrated that cmc-132,ananasi and cmi-167 were the most resistant genotypes to this pest.