Bettencourt, S.C.X., & Simões, A.M.A. 2008 Bioecology of Pseudococcus viburni (Signoret) in the Azores.. Proceedings of the XI International Symposium on Scale Insect Studies, Oeiras, Portugal, 24-27 September 2007. ISA Press Lisbon, Portugal 322 pp.

Notes: Abstract: This work complements a primary study of virus transmission among some cultivars of grapevines by the vector Pseudococcus uiburni (Signoret), which was identified as one of the most common mealybugs in Vineyards on Pico and Terceira islands, Azores. In this Archipelago, there is no accurate information about the bioecology of P. uiburni, and therefore we conducted a study to determine the duration of each instar and the fecundity/ fertility of adults. Eggs were placed on potato sprouts, and the emergence times and duration of developing nymphs were recorded daily. At the same time, the rate of fertility/ fecundity was determined by placing virgin adult females and male cocoons on potato sprouts. The oviposition and incubation periods, and the percent emergence were recorded.