Fourth International Bemisia Workshop International Whitefly Genomics Workshop
Current Situation of Bemisia tabaci in Vegetable Crops in Portugal
Plant Protection Department. Estação Agronómica Nacional, Oeiras, Portugal. Correspondence: mateuscelia@yahoo.com
In Portugal, Bemisia tabaci was first recorded in 1992 in vegetable crops and since 1995, it has been an important pest in Algarve, southern Portugal. In this region, B. tabaci is present year-round in greenhouse crops, with high infestation levels during summer. It is a serious problem to several vegetable crops, due partly to direct damage, but mainly to acquisition and transmission of plant viruses. The most severely affected crops are greenhouse tomato and cucurbits. IPM is considered the best way to deal with the sustainable management of this problem. Nevertheless, the presence of the viruses complicates the implementation of IPM programs and the integration and synergy of multiple control tactics has to be considered. The work presented here gives an overview of the results obtained through research activities carried out in this country regarding B. tabaci: geographical distribution, bioecology, biotype identification, virus transmission, monitoring, risk assessment and control methods.
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