Life Table and Some Biological Features of Planococcus Citri, Risso (Hemiptera: Pseudococcidae) on 41-B Grapevine Variety (Vitis Vinifera L.)

Abstract

Planococcus citri (Hemiptera: Pseuodococcidae), known as citrus mealybug, is a most crucialpolyphgous pest on many plants around the world including the grapevine. In this study, information ondevelopment, fecundity, survival and population projection of citrus mealybug on grapevine has been collected inthe climate chamber 25±1 ºC, 65-70 % RH, and 16:8 (L:D) h photoperiod. The preadult duration of females Pl.citri was 28.31 days, while the preadult duration for male individuals was 26.25 days. Total adult longevity andtotal longevity times for all cohort were found as 14.81 and 33.97 days, respectively. When reared on 41-Bgrapevine variety, the net reproductive rate (R0), mean generation time (T), the finite rate of increase (λ), and theintrinsic rate of increase (r) were 32.07 eggs/individual, 41.43 days, 1.087 day-1, and 0.084 day-1, respectively. Thepopulation projection showed Pl. citri could increase to population of 357 individuals in 60 days with an initialpopulation of 10 eggs. This study has provided the basic information about the general characteristics of thepopulation of Pl. citri fed on the 41-B grapevine variety and can be useful for IPM studies.