Monitoring for the whitefly Bemisia tabaci Genn. on Ribatejo and Oeste region of Portugal
2000
Queiros, M. do R.P. ((Instituto Superior de Agronomia, Lisboa (Portugal. Secçao de Protecçao Integrada) | Figueiredo, E. | Mexia, A.
During Spring-Autumn, 1999, a monitoring scheme was set up for the whitefly Bemisia tabaci Genn. on the Ribatejo e Oeste region of Portugal. Entomological material was collected in 85 greenhouses, on tomato crop in the most representative production areas of this region. Sampled material was reared in laboratory up to adult whitefly emergence. Identification of the specimens was made based on the differential morphological characteristics or, in case of doubt, by diafanization and microscopic observation of relevant characters. Although the existence of B. tabaci, since 1992 in Algarve region, Trialeurodes vaporariorum West. was the only whitefly species found on this survey. No infected plant with TYLCv was found, also
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