[The Prays oleae Bernard olive moth in the Moura region [Portugal]]
1998
Patanita, M.I. | Guerreiro, A. | Mexia, A.
The olive moth, Prays oleae Bernard, is an important pest of olives in the Mediterranean region. However, it is considered to be without economic importance in Alentejo. The aim of this work was to assess the losses due to the pest in the region. Data were also obtained on its life cycle and the possibility of using sexual traps for risk assessment was analysed. The experiments were carried out during 1993-1997 in some olive groves of the Cordovil, Galega and Verdeal varieties, near Moura. We concluded that in these experimental conditions, the damage caused by the carpophagous generation can be important as it represents about 45% and 50% of the harvested production respectively in 1993 and 1994. The correlation between trap catches and the percentage of infestation has been found to be quite high for antophagous generation in 1993 and for antophagous and carpophagous generations in 1994
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