Optimization of the field performance of released Trichogramma Spp. in olive groves in Egypt [electronic resource].

Includes reference.

The egg parasitoid species Trichogramma bourarachae Pinturaeu and Babault, T. codubensis Vargas and Cabello, T. euproclidis Girault, all collected from olive groves in Egypt as well as the commercially available T. evanscens Westwood, originating from sugarcane fields in Egypt, were released and monitored under laboratory and olive field conditions in 2004 season to study their emergence rate and duration of wasps availability. The releasing doses were ea 3000 wasps/card/species. Peaks of adult emergence varied according to the species and date of testing. In contrast to the commercial species, the achieved doses of the three local species did not differ between the laboratory and field conditions also during the third trial "release" and accounted in all cases to satisfying values.

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