Plants infected before flowering usually died within a few days. Plant infected after flowering showed similar symptoms, do not die but do not yield marketable fruits. A new thrips species, Frankliniella zucchini , has been described and identified as a vector. The virus is not transmitted by Frankliniella occidentalis , F. schultzei and Thrips tabaci . Courgettes and cucumbers are important crops in the EPPO region.
Symptoms are severe on courgettes, as plant mortality and high yield reduction is observed.
However, more data is needed on the host range and epidemiology of the disease. So far, the vector Frankliniella zucchini has never been reported in the EPPO region. Increase of tospoviral diversity in Brazil with the identification of two new tospovirus species, one from chrysanthemum and one from zucchini . First report of natural occurrence of zucchini lethal chlorosis tospovirus on cucumber and chrysanthemum stem necrosis tospovirus on tomato in Brazil . Incidence and the biological and serological characteristics of a tospovirus in experimental fields of zucchini in Sao Paulo State, Brazil .