ABSTRACT
The succesful biological control of Diaspididae scales and the decline of the population of Ceratitis capitata after using bait sprays, in citrus groves, brought a change in the control programs of the other citrus pests in Greece. Thus now the key pest of citrus trees is the mealybugs. As biological control on mealybugs failed, new factors are studied in order to determine the most profitable pest management practices.
