New plant pests and weeds in Greece
        
        
          59
        
        
          1991).
        
        
          The tansy leaf beetle
        
        
          
            Galeruca tan-
          
        
        
          
            aceti
          
        
        
          (Linneaus) (Chrysomelidae
        
        
          
            )
          
        
        
          was re-
        
        
          corded in May 2005 as a pest of
        
        
          Origanum
        
        
          vulgare
        
        
          L. growing in the wild in Crete. At
        
        
          the same time the insect was observed to
        
        
          be a pest of origanum plants in a commer-
        
        
          cially grown organic crop, in the area of
        
        
          Meronas (Perfecture of Rethymno) (Rodi-
        
        
          takis & Roditakis, 2006).
        
        
          The rose curculio
        
        
          
            Homalorhynchites
          
        
        
          
            hungaricus
          
        
        
          (Herbst) (Rhynchitidae
        
        
          
            )
          
        
        
          has
        
        
          been recorded in Attica (May 2004), infest-
        
        
          ing blooms of ornamental roses (
        
        
          Rosa
        
        
          sp.)
        
        
          (Kontodimas & Kavallieratos, 2004).
        
        
          The wood eating beetle
        
        
          
            Coroebus rubi
          
        
        
          (Linneaus)
        
        
          
            (
          
        
        
          Buprestidae
        
        
          
            )
          
        
        
          was observed
        
        
          in 2004 in the area of Korinthia to cause
        
        
          an infestation on blackberries
        
        
          Rubus
        
        
          spp.
        
        
          (Bouchelos & Chalkia, 2004).
        
        
          
            Diaperis boleti
          
        
        
          Linneaus (Tenebrion-
        
        
          idae
        
        
          
            )
          
        
        
          was recorded in 1994 in peach or-
        
        
          chards. The adults open shallow burrows
        
        
          on branches where they hibernate. The
        
        
          larvae develop in mines on the branch-
        
        
          es and appear around mid June. Infest-
        
        
          ed branches break and the trees as well
        
        
          as the production are severely affected
        
        
          (Savopoulou-Soultani & Chatzivassiliadis,
        
        
          1999).
        
        
          
            Sinoxylon sexdentatum
          
        
        
          (Olivier) (Bo-
        
        
          strychidae) was recorded as a pest of wal-
        
        
          nuts in the area of Larissa and Magnesia
        
        
          in May 1996. The insect in other countries
        
        
          has a wide range of tree species as hosts.
        
        
          It is a wood-eating insect attacking the
        
        
          stems of young vigorous trees (Gravanis
        
        
          et al.,
        
        
          1998)
        
        
          
            Cassida seraphina
          
        
        
          Menetries (Chry-
        
        
          somelidae
        
        
          
            )
          
        
        
          was found on sugarbeet in the
        
        
          Region of Evros (Northern Greece) in 1992
        
        
          (Doulias & Ioannidis, 1995). It feeds on the
        
        
          leaves and can cause severe damage by
        
        
          sceletonizing the leaves.
        
        
          
            Attagenus unicolor
          
        
        
          (Brahm) (Derme-
        
        
          stidae) was recorded in 1999 as a pest of
        
        
          stored wheat products in Farsala and La-
        
        
          konia (Bouchelos & Athanassiou, 1999).
        
        
          
            Pseudopachymerina lallemantii
          
        
        
          (Mar-
        
        
          seul) (Bruchidae) was recorded on the or-
        
        
          namental tree
        
        
          Acacia farnesiana.
        
        
          It infests
        
        
          the pods causing a significant damage on
        
        
          it (Bouchelos & Chalkia
        
        
          ,
        
        
          2003).
        
        
          The species
        
        
          
            Prionus coriarius
          
        
        
          Linnaeus,
        
        
          
            Cerambyx velutinus
          
        
        
          Brulle,
        
        
          
            Cerambyx
          
        
        
          
            dux
          
        
        
          Faldermann and
        
        
          
            Rhopalopus clavipes
          
        
        
          (Fabricius) of the family Cerambycidae were
        
        
          recorded in 1994 as pests of the almond
        
        
          tree in the area of Magnesia (Koutroubas,
        
        
          1994). They are all wood-eating insects.
        
        
          
            1.4. Diptera
          
        
        
          
            Hexomyza(Ophyiomya)simplex
          
        
        
          (Loew)
        
        
          (Agromyzidae)
        
        
          is a stem miner that was re-
        
        
          corded for the first time in 2002 on aspar-
        
        
          agus plants in the areas of Aitoloakarnania
        
        
          (Central-Western Greece) and Orestias
        
        
          (North-Eastern Greece) (Anagnou-Veroni-
        
        
          ki
        
        
          et al.
        
        
          2004). Damage is caused to the hy-
        
        
          podermal cells of the stem. In cases of a
        
        
          large infestation the epidermis dries out
        
        
          and tears apart. The most serious damage
        
        
          is caused to young asparagus plantations.
        
        
          Damaged plant tissue favours fungal in-
        
        
          festation. The pest is currently spreading
        
        
          in Greece while its control is difficult.
        
        
          Two new leaf-miners, originating from
        
        
          the United States,
        
        
          
            Liriomyza huidobrensis
          
        
        
          (Blanchard) and
        
        
          
            L. trifolii
          
        
        
          (Burgess) (Agro-
        
        
          myzidae), were found in 1993 in Crete
        
        
          (Roditakis 1993) while soon later they were
        
        
          found in cultivations all over Greece.
        
        
          L. hu-
        
        
          idobrensis
        
        
          Blanchard, that is considered
        
        
          as the tomato leaf-miner is of the great-
        
        
          est economic importance while it has the
        
        
          most hosts of all the other leaf-miners and
        
        
          it is found in great numbers on mainland
        
        
          Greece as well as in the Greek islands.
        
        
          L.
        
        
          trifolii
        
        
          prefers warmer areas and this is why
        
        
          it appears especially in Southern Greece
        
        
          and in Crete.
        
        
          
            Delia (Phorbia) platura
          
        
        
          (Meigen) (An-
        
        
          thomyiidae) was reported to cause signif-
        
        
          icant damage to asparagus plantations in