Papers are presented focusing on biological control agents and how they are regulated across the EPPO region, how their use can be facilitated and how they may contribute to slowing the spread of invasive pests and mitigating the damage they cause. Three papers deal with Dryocosmus kuriphilus, a...

The pinewood nematode (PWN), Bursaphelenchus xylophilus, is the causal agent of pine wilt disease. This species has been reported from the United States of America and Asia associated with important forestry tree species, including pine, spruce, fir, larch and other conifers. However, in Europe,...

A new distribution map is provided for Beet mosaic virus. Potyviridae: Potyvirus. Hosts: beetroot (Beta vulgaris), sugarbeet (Beta vulgaris var. saccharifera) and white yam (Dioscorea alata). Information is given on the geographical distribution in Europe (Albania, Austria, Belgium, Bulgaria,...

Tomato chlorosis virus causes yellow leaf disorder epidemics in many countries worldwide. Plants of Physalis ixocarpa showing abnormal interveinal yellowing and plants of Physalis peruviana showing mild yellowing collected in the vicinity of tomato crops in Portugal were found naturally infected...

Until recently, the pine sawyer Monochamus galloprovincialis (Olivier) (Coleoptera; Cerambycidae) was considered a secondary forest pest in Portugal. Its pest status changed when it was found to be the main vector of the recently introduced pine wood nematode (PWN) Bursaphelenchus xylophilus...

Protected tomato is the most important horticultural crop in the Algarve (south of Portugal). However, the growing area has decreased by almost 48% since 1995, mainly as a result of the pests B. tabaci and T. vaporariorum and the epidemics of tomato yellow leaf curl virus, a Begomovirus transmitted ...

Tomato spotted wilt tospovirus (TSWV) was first reported in Portugal in 1991 and found to be associated with imported ornamental plants. Subsequently, it became an important pathogen on horticultural crops. The virus was found in >30 plant species, including vegetables, ornamentals and weeds....

During late summer 1995, an epidemic of a disease associated with whiteflies (Bemisia tabaci) seriously affected tomato crops, especially greenhouse grown crops in Algarve, Portugal. Symptoms included stunting, leaf curling and yellowing. Up to 100% of autumn crops were affected and yield was...