Literature Cited:
Deahl, K.L., R.W. Goth, R. Young, S.L. Sinden and M.E. Gallegly. 1991. Occurrence of the A2 mating type of
Phytophthora infestans in the United States and Canada. Am. Potato J. 68:717-725.
Lukyanenko, A.N. 1991. Disease resistance in tomato. In: Genetic Improvements of Tomato (ed. G. Kalloo) pp. 99-
119.
Rick, C.M. 1986. Germplasm resources in the wild tomato species. Acta Horticulturae 190:39-47.
Rick, C.M. 1988. Tomato-like nightshades: affinities, autoecology and breeders' opportunities. Econ. Bot. 42:145-
154.
Turkensteen, L.J. 1973. Partial resistance of tomatoes against Phytophthora infestans, the late blight fungus. Agr.
Res. Rep. 810, Centre for Agr. Publ. Doc. Wageningen. 88 p.
Screening of resistant materials of Lycopersicon spp to TSWV by means of thrips transmission.1
Lacasa, A.1 ; Contreras, J.1 ; Jorda, C.2; Diez, M.J.3; Rosello, S.3; Catala, M.S.4, Costa, J.4 and Nuez, F.3
1. Plant Protection Dept.. C.I.D.A., La Alberca, Murcia.
2. Plat Protection (Pathology) Dept., Polytechnical University 46020 Valencia.
3. Biotechnology (Genetics) Dept., Polytechnical University 46020 Valencia.
4. Horticulture Dept., C.I.D.A., L Alberca, Murcia.
Tomato Spotted Wilt Virus appeared in Spain as a disease in 1988 (Cuadrado et al., 1989; Jorda and Osca, 1989).
Its appearance was followed by its spread to crops in many mild areas due to exchange and trade of plant material
(Lacasa et al., 1991) and to the dispersion of Frankliniella occidentalis, its more efficient vector (Marchoux et al.,
1993; Lacasa and Contreras, 1993; Wijkamp and Peters, 1993). Economic losses of marketable tomato yield have
been important, principally in areas near the Mediterranean coast and Canary Islands (Lacasa et al., 1993), in spite
of efforts made to control the vector.
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