Leila Kholghi-Eshkalak - Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.
Jalal Jalali Sendi - Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.
Azadeh Karimi-Malati - Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.
Arash Zibaee - Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.

Citrus swallow tail butterfly, Papilio demoleus L. is a pest of citrus in many parts of the world. We examined the effect of four different citrus hosts including Citrus sinensis (L.) (Tarocco and Valencia) Citrus limon (L.) (Eureka), and Citrus paradisi Macfad. (Shambarg) on its life table parameters and biological characteristics at ۲۴ ± ۱ °C, ۷۵ ± ۵% RH and a photoperiod of ۱۶: ۸ h (L: D). The developmental time of immature stages was longest onC. sinensis (Tarocco) (۱۲.۳ ± SE days).The intrinsic rate of natural increase was significantly affected by variouscitrus, being the highest on C. sinensis (Tarocco) (۰.۰۹۹ day-۱) and lowest on C. sinensis (Valencia) (۰.۰۱۱ day-۱).The highest and lowest finite rates of increase were observed onC. sinensis(Tarocco) ۱.۱۰ andC. sinensis(Valencia)۱.۰۱, respectively.The highest gross reproductive rate and the lowest mean generation time were observed on C. sinensis (Tarocco) and C. sinensis. (Valencia), respectively. The findings indicated that C. sinensis (Tarocco) appeared to be the most susceptible host to P. demoleus among the tested varieties. The results of this and similar studies in the future on other hosts may be considered as a basis for finding resistant host/hosts in monitoring this pest.

Papilio demoleus, Life table, Population growth parameters, Citrus