Emerging olive pests in Mediterranean

Quince moth Euzophera bigella (Lepidoptera: Pyralidae) and the olive leaf gall midge Dasineura oleae (Diptera: Cecidomyiidae),are two of the newly recorded pests in the Mediterranean basin. E. bigella was found infesting olive trees in 2011 in northern Greece. Infestation induced cracking and swelling symptoms on the bark of limbs and the periderm of trunks, accompanied by extensive internal bark necrosis, which caused the desiccation of limbs or even the death of whole trees. D. oleae has been reported infesting olive trees in Greece; however, it was not considered a pest of the crop. In February 2010, extensive infestations by D. oleae were detected in the coastal zone of Elounda, Lassithi (Region of Crete). Infestations were observed on the leaves causing elongate galls and deformations, while in highly infested trees defoliation was reported.

https://doi.org/10.1007/s10340-012-0418-1