Cottony cushion scale

General The cottony cushion scale, Icerya purchasi , is considered to have originated in Australia. It was accidentally introduced to California in about 1868 and devastated the citrus industry there

Pear psylla

General The pear psylla, Cacopsylla pyri , is a widely distributed pest of pear in central Europe and can inflict serious damage in pear orchards. Damage symptoms Pear psylla feeding leads to growth i

Hemispherical scale

General The hemispherical or helmet scale, Saissetia coffeae , occurs widely in tropical regions and in greenhouses throughout the world. It is a severe pest in coffee and citrus. Many ornamental crop

Lyprauta

General Larvae of the flies Lyprauta cambria, Proceroplatus trinidadensis and Lyprauta chacoensis (family Keroplatidae) have been associated with root damage in potted orchids, especially in greenhous

Pine processionary moth

General The Pine processionary moth (Thaumetopoea pityocampa), is a major pest of pine trees around the Mediterranean Sea. It is most conspicuously damaging on pine plantations, or amenity pines. Dama

Oak processionary moth

General The oak processionary moth ( Thaumetopoea processionea ), is a major pest of oak in many European countries. The common and scientific names of this moth refer to the behaviour of the larvae t

Horse-chestnut leaf miner

General The horse-chestnut leaf miner, Cameraria ohridella , probably originates from natural stands of the European horse-chestnut in Greece, Albania and Macedonia. It was first observed attacking or

Circular scale

General The circular scale, Chrysomphalus aonidum is a tropical species, native to the Oriental region but it has been dispersed widely in tropical and subtropical parts of the world, mostly in associ

Brown soft scale

General The brown soft scale Coccus hesperidum is very common in tropical and sub-tropical regions and is also a common pest in greenhouses throughout the world. C. hesperidum has many host plants, in

Cutworms

General Cutworms ( Agrotis spp.) are occurring worldwide. Important species are for instance the black cutworm Agrotis ipsilon and the turnip moth Agrotis segetum . The larvae of these moths usually f