Raciti, E., Barraco, D., & Conti, F. 2001 Controllo biologico del cotonello degli agrumi. [Biological control of the citrus mealybug.]. Informatore Agrario 57(19): 49-54.

Notes: A study was conducted as a continuation of investigations initiated in Sicily in 1993 within the project on integrated control of citrus mealybug (Planococcus citri) to evaluate parasitism by Leptomastix dactylopii, as well as that of indigenous species Anagyrus pseudococci and Leptomastoidaea [Leptomastidea] abnormis. As Leptomastix dactylopii does not survive low temperature, it needs to be reintroduced every year. Experiments were conducted on 3 farms with susceptible Navelina oranges during 1995-97, 1998 and 2000. Data are presented on captures of males with yellow pheromone traps, damage to commercial plantations, and composition of parasitoid populations. Introduced L. dactylopii populations were a decisive factor in control of pest populations. The level of parasitism reached 50% (and 70% when considering pupae which did not come out of cocoons). Parasitism by A. pseudococci was 60%, while L. abnormis was less effective. The presence of hyperparasitoids Chartocerus kurdjumovi and Pachyneuron concolor is also reported.