Life history parameters of the potato tuber moth, Phthorimaea operculella (Zeller) (Lep.: Gelechiidae) on the tuber of six potato cultivars under laboratory conditions

Using resistant varieties is one of the suitable ways for controlling the potato moth, Phthorimaea operculella as one of the important pests of potato in field and storage. So that the resistance of six potato cultivars (Banba, Bellini, Jelly, Draga, Marfona, and Milva) to potato tuber moth was assessed by studying the biological and the demographic effect of the mentioned pest. This experiment was carried out in a growth chamber, 25 ±2°C, 65 ±5% RH and 14L:10D h photoperiod. According to the results, the potato tuber cultivars had a significant effect on the period of egg, larva, pupa, preadult, male life span, male and female adult longevity of this pest (P0.05). In addition, in this study, reproduction parameters of potato moth including APOP and total fecundity were not significant among the potato tuber cultivars (P>0.05), but they were significantly different on the period of TPOP and oviposition period (P0.05). In addition, in this study, reproduction parameters of potato moth including APOP and total fecundity were not significant among the potato tuber cultivars (P>0.05), but they were significantly different on the period of TPOP and oviposition period (P