ABSTRACT

Phenols are widely distributed in plant tissues and may be important in protecting plants from herbivore attack. The larvae of the olive fruit fly, Dacus oleae Gmel, is the most serious pest of the olive fruit throughout the Mediterranean basin. Eggs were placed on a filter paper on the surface of the diet and hatchability of eggs was checked 3 days after placement of eggs. Number of larvae and their weight were recorded from a sample obtained randomly on the 11th day following placement of eggs, while pupae were collected and counted from days 14 to 21. Pupal weight and adult emergence of the surviving larvae, however, were equivalent to the control.