Palmeri, V., Benfatto, D., Mazzeo, G., & Di Leo, A. 2005 Indagini sulla cocciniglia gialla degli agrumi in Italia. [Observations on the yellow scale on citrus in Italy.]. Informatore Fitopatologia 55(3): 54-58.

Notes: The current presence and activity of yellow scale (Aonidiella citrina) in citrus trees in Italy were investigated during 1999-2001 in Calabria and Sicily. Pheromone traps were used to assess pest population composition and the composition of useful entomofauna. Aonidiella citrina was limited in the area where it was first sighted 10 years ago. Three insect generations were completed and overwintering was observed at different developmental stages (mainly during the second instar stage). Three intense flight periods were observed (April, July and September), each formed by 2 cohorts. The most active predators were Aphytis melinus and Encarsia citrina.