Abstract
Over 10 000 predatory arthropods were collected from two olive orchards, and tested in a serological bioassay for olive moth, Prays oleae (Bernard), predation. The highest number of natural enemies tested positive during the flower generation, when the pest is most vulnerable. No consumption of P. oleae was detected once the larvae penetrated the olive fruit. Drought affected development of flowers and fruit, so reducing the pest and natural enemy population. Site differences affected the relative importance of the different predatory groups. Ants were the most commonly found predators, followed by Heteroptera and Coleoptera. Secondary predation and scavenging may have yielded false positives among the ELISA results.
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