Polat, F., Ülgentürk, S., & Kaydan, M.B. 2008 Developmental biology of citrus mealybug, Planococcus citri (Risso) (Hemiptera: Pseudococcidae), on ornamental plants.. International Symposium on Scale Insect Studies, Oeiras, Portugal, 24-27 September 2007. ISA Press Lisbon, Portuga 322 pp.

Notes: Abstract: Development, longevity, fecundity and life-table parameters of Planococcus citri 'Hemiptera: Pseudococcidae) feeding on Nerium oleander, Schefflera arbicola, Kalanchoe blossfeldiana and Sygonium podophyllum at 28±1°C, 65±10% RH and 16L:8D under laboratory conditions were investigated. The development time of female P. citri ranged from 20.33±0.52 on N. oleander to 12.85±0.64 days on S. arbicola. For males, it ranged from 17.60±0.26 days on S. podophyllum to _0.60±0.051 on S. arbicola. Immature P. citri displayed the lowest mortality rate on S. podophyllum and the highest mortality rate on S. arbicola. Life expectancy of P. citri was shortest on S. arbicola 18.05±0.47 days) and the number of eggs laid on this host was the lowest (96.20±0.51). Longevity 28.82±1.88 days) and number of eggs laid (363.10±19.63) were highest on S. podophyllum. The lowest (75%) and highest (95.66%) rate of egg hatching occurred on S. arbicola and S. podophyllum respectively. The sex ratio of P. citri favoured females, which comprised 54-66% of the population. The highest reproductive rate (Ro) occurred on S. podophyllum, with 205.46 female offspring/ female, and the lowest occurred on S. arbicola, with 32.27 female offspring/ female. The intrinsic rate of increase (rm) was Significantly different among hosts, with the highest rate (0.138 female offspring/ female/ day) on S. podophyllum.